Custom HVAC and Air Filters

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Custom Replacement Air FiltersCustom air conditioning and furnace filters are necessary when you cannot find a standard stock size air filter to fit your filter housing, track, slot, or vent properly. We discussed measuring your air filter housing slot in our last post about how to figure out if your air filter is too small for your unit. Once measured, if you are unable to find a standard sized air filter within 5/8th-in smaller than the housing slot, your unit requires a custom sized air filter. Custom sizes are not stocked on shelves or available at local stores. With literally tens of thousands of possible size combinations, there is simply no way to keep each size in stock. However, you can select the exact size you need by building a custom air filter from US Home Filter where we keep a vast array of standard sizes, including many uncommon hard-to-find sizes, in stock and can make any custom size air filter that you may need!

Unfortunately, while there are many standard and commonly used sizes, the HVAC industry as a whole has not standardized air filter sizing. The majority of the time, air filter sizes are determined by the manufacturer of your unit and the size is generally determined based upon the finished size of the unit itself, rather than what would be known as a common air filter size that you can easily find at a local store. This can prove to be quite an inconvenience for many.

Some will recommend to put your main focus on the type of air filter you use. While that is an important factor, when you are faced with choosing a custom sized air filter your first and foremost concern should be in determining the exact size you need. The type of filter you use is irrelevant if it does not fit properly.

Custom Filters Reduce Indoor Air Pollution

According to the EPA, indoor air pollution is among the top five environmental health risks. Ensuring your air filter fits properly within your system and regularly cleaned is imperative to your furnace or air conditioning system operating properly and preventing costly repairs and replacements. This is where custom sized air filters are essential. The air should move through the filter, not around it, so those indoor air pollutants are caught in the filter and not returned into your home and the air you breathe. At US Home Filter, we have a step by step process to determine the appropriate air filter dimensions for your heating and/or cooling system and we deliver your custom air furnace filters straight to your door.

Once you have figured out the exact dimensions you need for your custom air filters, then you can select the type of filter you need based upon your needs. Your needs will likely depend on how much you prefer to spend balanced with what level of filtration you desire. It is also extremely important to change your custom air furnace filter on a regular basis. This allows for a constant flow of clean air into your home which will help you and your family avoid respiratory difficulties, allergies, and illness and keep your family safe and comfortable. It will also allow your system to work efficiently increasing its performance and longevity and decreasing energy bills.

In conclusion, a properly fitting air filter is necessary to keep your home safe and the air you breathe clean. There are hundreds of air filter sizes and US Home Filter is here to help you get the correct filter as easily and efficiently as possible.

 

Order now from US Home Filter and receive FREE SHIPPING on your order!

Selecting the filters that are just right for your home can be difficult and confusing at times. At US Home Filter we understand this, which is why we offer an experienced staff to help answer any questions you may have. For personal assistance with your air filter needs, please contact us now online or call us at (855) 237-1673 and we will do our very best to assist you in selecting the right filter for your individual needs. We want to earn your business and we guarantee your satisfaction! Take advantage of our quality products, vast selection, low prices, and enjoy FREE SHIPPING on every air filter order within the Contiguous USA.

Is My Air Filter Too Small?

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How to determine if your air filter is the correct size for your unitIs the air filter I have too small for my unit? We hear this question from a lot of our customers. Each air conditioning system or HVAC unit has a certain size filter that allows the filter to perform correctly by protecting your heating/ac system. The filters don’t need to fit with an “air tight” seal, but you should be able to easily install and uninstall your filter without a struggle, plus the filter shouldn’t be so small that it moves freely within your unit. Your filter should be a bit smaller on each side of the filter housing slot, thus allowing you to slide the filter in with ease. Most AC and HVAC units use standard sized filters, but some do require a custom size air filter.

Some Signals that Your Air Filter is Too Small:

1. The air filter moves around too much inside the filter housing slot.
2. When your unit turns on, you hear noises such as knocking, whistling, or rattling.
3. Once installed, the air filter does not completely cover the vent or duct opening.
4. You notice that the air filter does not seem to get dirty.

Consequences of Using an Air Filter That is Too Small:

1. The filter can be sucked into the ventilation if it is much smaller than it should be.
2. Dust, allergens and pollutants will not be filtered from your indoor air, as the air is bypassing the filter and entering into the ventilation and is returned back.
2. The filter will be unable to protect your AC/HVAC unit and the unfiltered air will collect on internal components of your system, such as the coil and fan, which can lead to expensive repairs.

If you are questioning whether or not your filter is too small, here are a few suggestions on how to check:

Measure the air filter housing slot, but only the usable space where the filter can fit into. Make sure to take into consideration any overlaps or recessed edges that may obstruct installing or uninstalling the filter. For most systems you can use a standard sized filter within 5/8-in smaller than the air filter housing. If you are not able to find a standard sized filter within that parameter, you will need to order a custom sized air filter.

There are also air conditioning/HVAC units that are open-ended, meaning you don’t close a door or panel over the air filter housing. In these cases, you have more flexibility in selecting your filter size, as you can choose one that is longer than the size of the opening. This also gives you a pseudo “handle” that sticks outside the opening that allows you to grab onto for ease of removal when it’s time for the filter to be changed.

An excellent resource to help you is the US Environmental Protection Agency (EPA) Guide To Air Cleaners in The Home.

How to Choose Your Air Filter Size for Each Unit Type:

1. If your unit has wall and ceiling vents that do not have clips or brackets that secure the filter you want to find the closest fit possible (within 1/8-in. smaller than the opening) that prevents movement or noises as mentioned above.
2. If your unit has wall and ceiling vents that has clips or brackets that secure the filter you can select a filter size within a 1/2-in. smaller than the opening.
3. If your unit has a standard filter slot (typically located near the blower unit) you can select a filter size within 1/8-in – 5/8-in. smaller than the two longest sides. As mentioned above, you can also choose a longer filter as there is no door or cover that needs to be closed over the filter.
4. If your unit has a filter cabinet or drawer/large housing compartment you will need to select a specialty Whole House Air Filter (filter depth should be over 4 inches). Look  for the part number or model number on the door/panel/housing or the reference number on the air filter to find the actual filter size.

Order now from US Home Filter and receive FREE SHIPPING on your order!

Selecting the filters that are just right for your home can be difficult and confusing at times. At US Home Filter we understand this, which is why we offer an experienced staff to help answer any questions you may have. For personal assistance with your air filter needs, please contact us now online or call us at (855) 237-1673 and we will do our very best to assist you in selecting the right filter for your individual needs. We carry humidifier filters and pads for all major manufacturers (including Air King, American Standard, AprilaireGeneralAire and Honeywell). We want to earn your business and we guarantee your satisfaction! Take advantage of our quality products, vast selection, low prices, and enjoy FREE SHIPPING on every air filter order within the Contiguous USA.

Analyzing the Air We Breathe

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Most of us do not spend too much time analyzing or thinking about the process of breathing, what our air is made up of, and the role that air filters play in the air quality of our indoor spaces. Using pleated air filters in our heating and cooling systems can be highly beneficial in scrubbing pollutants and allergens from the air in our homes.  There is actually a great deal of interesting data about this seemingly insignificant subject.

Did you know?

  • The average adult inhales and exhales almost 400 cubic feet of air each day
  • We take an average of 17,000 – 23,000 breaths per day
  • While oxygen makes up about 20% of our air, our body only requires 5% of that
  • If Earth were compared to an apple, the layer of atmosphere containing the air we breathe can be compared to the skin of the apple

The Anatomy of Air

The air we breathe is a combination of gases: 78% nitrogen, 21% oxygen, and 1% argon, carbon dioxide, and trace amount of other gases. Within the air are particles and gases that originate from many sources, nature and man-made. Although much of what we breathe is filtered and exhaled, there is a host of contaminants that can impact our health and surroundings. Whether the source may be indoor or outdoor, naturally-occurring or from a man-made process, all particles are categorized as either an aerosol or a gas. Many types of particles can be captured with the air filters we use in our heating and air conditioning systems.

Aerosols – defined as a suspension of a solid or liquid particle in the air. This encompasses a multitude of particulates that can be a solid, liquid, or compound:

  • Dust – a solid aerosol created from the reduction of a larger solid particle or material. This can be created by drilling into a surface such as wood or concrete or from a natural occurrence such as a volcano or sandstorm
  • Mold – a bioaerosol that has indoor and outdoor sources derived from soil, plants, and moist surfaces such as walls, insulation, clothing, or carpet.
  • Bacteria and viruses- also classified as bioaerosols that are transported by air currents and are estimated to include millions of varieties of each
  • Fumes – created from vapor condensation from such processes as combustion or welding
  • Fog – a liquid created during water vapor condensation
  • Mist – a suspension of liquid droplets that can include oils, paint, acids, and chemicals
  • Smoke – from the burning or combustion of organic matter such as wood, coal, or tobacco
  • Smog –  air pollution caused by industrial or chemical processes

Gases – defined as a material that can expand indefinitely to fully occupy the space it is in. Gases exist in the form of molecules and include vapors along with the gases that make up the composition of our air. Gases can be odorous, toxic, and corrosive in nature. The presence of most gases will be recognized, but some such as Carbon monoxide are undetectable by the sense of smell. Gases may originate from chemical, manufacturing and biological processes.

The Micron

Particles are measured in micrometers (also referred to as a micron), using the abbreviation “μm”. A micron is 1 millionth of a meter or an inch divided by 25,400. For perspective, the average human hair is about 150 μm while the smallest visible particle is around the 25 μm range. Particles measuring less than 1μm make up over 98% of the particles found in the outdoor atmosphere while only 0.005% consist of those measuring 20 μm.

The Role of Air Filters

Air filtration provides us with a means to attain the desired level of indoor air quality. Air filters were originally intended to simply shield the components of your expensive HVAC system, thus protecting it from harmful dust build-up and extending its life. As the manufacturing process of air filters evolved over the decades, filtration media became more refined and specialized which allowed us to go beyond system protection into cleaning contaminants, allergens, and other bothersome particles from our air using high-efficiency pleated air filters. This has allowed a significant improvement in indoor comfort and cleaner air in our homes and businesses.

If indoor air quality is important to you, begin by selecting the level of filtration based on the types of particles that you aim to capture with your air conditioning filters and furnace filters. You can choose a MERV rating that targets specific types of particles such as pet dander, mold spores, or pollen. The higher the rating, the smaller the particle that can be captured. A general guideline for MERV ratings is:

  • MERV 8 – for mild allergies and average dust particles
  • MERV 11 – for moderate allergies and smaller dust particles
  • MERV 13 – for severe allergies and the finest dust particles

Determining the size that your system requires and choosing the MERV rating that is best for you can be a little overwhelming, especially if you have never purchased air filters for your home or if you have a new unit or home to buy filters for. You can take a look at our air filter measurement guide to help you pick the right size or call us and we can easily assist you with ordering the exact air filter size you need and recommend the best rating for you depending on the level of filtration you want. Whether you need AC or furnace filters, a specialty Whole House filter, a Grille filter, or even a custom air filter size, we have a professional and helpful staff ready to take care of you!

Call us at 1-855-237-1673!

Humidifier Season is Here

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Did you even know there was such a thing as humidifier season? It occurs during the driest months of the year, typically from October to March for most of us. Humidifiers and humidifier pads, also known as humidifier filters, can be very beneficial during the chilly, dry winter months. In the wintertime, our heaters work hard to keep us warm and cozy. Our air filters and furnace filters strive to keep the air inside clean and free of contaminants. Along with these elements that keep you comfortable and improve your indoor air quality, why not add a humidifier unit that will make your environment even more enjoyable when that cold weather settles in?

How can you tell if you need a humidifier?

As the fall weather transitions into the winter months, the air becomes increasingly cold and harsh. While our heaters are running strong to keep us warm, the moisture is depleted from the air inside and can cause many individuals a lot of discomfort. Excessively dry air can result in a number of issues. What exactly are the signs that your indoor air is too dry?

  • Dry, irritated skin, eyes, nose, and/or throat
  • Inflammation of respiratory tract increasing risk of cold, flu, and infection
  • Increased static electricity – flyaway hair, clingy clothes, getting shocked
  • Brittle, warped, cracked wood surfaces, gaps or creaking in floors, loosened furniture joints or window frames

Benefits of humidified air

While these are the undesirable side-effects of the dry air that occurs this time of year, you do not need to suffer needlessly. Increasing the level of humidity in your home can provide a significant amount of relief. What can you expect when you add moisture to your air?

  • Skin that does not feel stretched, dry, and flaky
  • Nasal passage and throat will be less dry and irritated
  • Reduced risk of sickness and infection, plus improvements in healing times
  • Decreased static electricity
  • Wood surfaces and flooring are protected from effects of overly dry air
  • You can set your thermostat lower – moist air is warmer than dry air, so with the use of a humidifier you will achieve a warmer indoor temperature at a lower setting

Types of humidifiers

There are basically two main categories of humidifiers – whole-house or stand-alone. Both function in the same manner of adding moisture to increase the indoor humidity levels in your home.

Whole house – these are installed inline with your heating system and will disperse moist air into your home through your air vents during heating cycles.  

Stand-alone – as their name implies, these humidifiers are separate from your heating system. They are available in various sizes, such as a tabletop unit for use in a particular room, or larger console units that will humidify a larger area of your home.  

Regardless of the type of humidifier unit, they all require the use of a humidifier pad.  The humidifier pad or humidifier filter, also known as a wick filter or evaporator pad, is responsible for assisting your unit in distributing moisture evenly into your home’s air.  Most humidifier pads need to be changed every 2-3 months or at least once per season at a minimum.

Ideal humidity level

The ideal range for the humidity level in the home during the winter season is between 30-40%. Levels will however vary depending on the outdoor temperature. A level of humidity that is too high can cause condensation on your windows and facilitate the growth of moisture, as well as providing the ideal living environment for dust mites to thrive in.  Both of these will commonly trigger allergic reactions in many people, including those without a specific allergy to them. Conversely, if your humidity level is too far below the recommended range, you may begin to feel the effects of dry air such as itchy skin and irritated respiratory airways. You can easily monitor the humidity level with a hygrometer which can be found at home improvement stores for a pretty low cost.

Don’t Suffer This Winter – Try a Humidifier!

Humidity is simply the level of moisture present in the air. We can utilize humidifier units to increase our level of indoor humidity, thus decreasing the level of dryness in our air. We have outlined many immediate improvements that remove or drastically reduce some of the most annoying issues that we complain about when the air is too harsh and dry. A stand-alone unit is the least costly and easiest to set up, so if you are unsure about committing to a whole house unit, try this option first and start enjoying the results right away!

US Home Filter offers a full selection of humidifier pads.

Order now from US Home Filter and receive FREE SHIPPING on your order!

Selecting the filters that are just right for your home can be difficult and confusing at times. At US Home Filter we understand this, which is why we offer an experienced staff to help answer any questions you may have. For personal assistance with your air filter needs, please contact us now online or call us at (855) 237-1673 and we will do our very best to assist you in selecting the right filter for your individual needs. We carry humidifier filters and pads for all major manufacturers (including Air King, American Standard, AprilaireGeneralAire and Honeywell). We want to earn your business and we guarantee your satisfaction! Take advantage of our quality products, vast selection, low prices, and enjoy FREE SHIPPING on every air filter order within the Contiguous USA.

FIGHTING FALL ALLERGIES

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Fall allergies: Tips to reduce symptoms and provide reliefThe fall season is quickly approaching. For many that means preparing for the “fight against fall allergies” that afflicts numerous individuals. Although a favorite time of year for most people with its vibrant colors of leaves, milder temperatures, and delicious comfort foods, many live in fear of the sneezing, runny nose, and red, watery, and itchy eyes that the season brings them. The once prolific summer blooms will come to pass and make way for autumn shades, cool evenings, and more time spent indoors.

In addition to the wonderful elements that many look forward to, the autumn weather welcomes in a new season of allergies for others that can be particularly bothersome. While some will find relief from summer allergies as fall begins to commence, others may just be preparing to take their turn. Those that are the least fortunate seem to battle with various forms of allergens throughout the changing seasons.

What are the most common allergy triggers that come about during this time of year?

Ragweed – Until the first hard freeze, ragweed will continue to pollinate and cause misery to its victims in the form of hay fever or allergic rhinitis. Ragweed is one of the most prolific and widespread types of pollen, with each plant being capable of producing up to 1 billion grains of pollen each season. There are numerous other types of weeds that generate pollen such as sagebrush and goldenrod. Types of pollinating weeds vary depending on various regions of the country.

Mold – According to some sources, mold allergies will be especially troublesome this year and bad enough to cause allergic responses for those who are not normally bothered by mold. This perfect storm, as they are calling it, is brought about by warmer weather and greater levels of moisture. Wet surfaces such as tree bark, brick walkways, and gathering leaves provide an ideal breeding ground for mold.

Indoor Allergens – On average, most will have a habit of spending more time indoors. If your home is a biotechnology clean-room, then you should have no issues. But on average, no matter the attempts a person makes to have a contaminant-free environment, you will still be exposed to some degree to dust and pet dander – the most common indoor allergens.

Knowing these prevalent autumn allergens is helpful, but those with allergies or sensitivities to these allergens are accustomed to practices that minimize exposure and help defend against the effects of these airborne irritants. If allergies are a new concern, you will find an overwhelming amount of tips and advice online, but there are a few basic points to become familiar with.

What are the most common allergy prevention or reduction recommendations?

Pay attention to the pollen count – Pollen count fluctuates daily and even multiple times during each day. Pollen can have a significant impact on those who are allergic. As a result, these individuals often utilize numerous online resources and apps that are available to plan their outdoor activities around the anticipated pollen count when it is an option. Find one that you like and remember to use it when planning YOUR outdoor schedule.

Minimize mold mold can grow anywhere indoors or outdoors where conditions are right. Mold has a couple of basic requirements in order to grow – moisture and food. Moisture can come in the form of humidity, condensation, standing water, or water leaks. Food comes in the form of a surface for which the mold can grow on. Ideal surfaces are natural or organic in nature and include items such as leaves, paper, wood, and clothing.

Do away with the dust – Dust is nearly impossible to eliminate completely as it must be controlled at the source. The level of difficulty is high because there are numerous sources of dust and it is constantly reintroduced into the environment, despite efforts to remove it.

Hold back the humidity – While the air tends to be more dry in some areas during this time of year, some regions have a higher level of humidity. Dust mites and mold thrive in more humid environments. Using a dehumidifier can be very beneficial in removing moisture from the air which, in turn, provides the least ideal conditions for the dust mites and mold to multiply. If you already use a dehumidifier at home or at work, remember to change the humidifier pad regularly.

Improve your IAQ – IAQ refers to Indoor Air Quality. One of the best things you can do to assist with keeping your air clean is to regularly change your air filters (including your air conditioning, furnace and whole house air filter). Your air filter is a great added level of defense against dust as it will not only protect your HVAC system components and keep your unit clean, but it will also remove the dust and allergens from your air.

Contact us if you have any questions!

Family owned and operated for four generations now, we may not be doctors but we certainly know about allergies and air filters! Over the years our experienced staff has help thousands of customers by answering the same questions that you may have.

Additionally, we know that selecting the air filters that are just right for your home can be difficult and confusing at times. What MERV rating is best for my family? Is there an advantage to getting a pleated filter? Am I paying the right price? We understand this, which is why we offer an experienced staff to help answer any questions you may have. For personal assistance with your air filter needs, please contact us now online or call us at (855) 237-1673 and we will do our very best to assist you in selecting the right filter for your individual needs. We want to earn your business and we guarantee your satisfaction! Take advantage of our quality products, vast selection, low prices, and enjoy FREE SHIPPING on every air filter order within the Contiguous USA.

FURNACE FILTERS

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Now that autumn is here and winter is just around the corner, many of our customers are changing their furnace filters. Not surprisingly, at this time of the year many people frequently ask us the same two questions about furnace filters:
– Is a furnace filter the same exact thing as my air conditioning filter?
– I didn’t even know that my furnace had a filter, so how do I change it?
So in order to help everyone who has either of these two questions on their mind, let’s take a look at the answers!

Is a furnace filter the same exact thing as my air conditioning filter?

Furnace Filters - What are they and how do I change them?If your house or home has central heat and air conditioning, then the answer is yes. Even if you have a separate cooling (HVAC or AC) unit and a furnace unit for your heating system, they both will normally share the same air-handler. Because that’s the same exact area where your air filter resides, both systems will share the same filter. Whether you are heating your home during cold weather or cooling off your house during the heat of the summer, air will flow through your air-handler in both situations. It is important that the airflow not be constricted or impeded, or a strain will be placed on either your furnace or air conditioning unit, leading to less efficiency and eventually even damage to your unit.

In many newer homes and houses that are located in climates that require more moderate cooling and heating needs, you may have what is known as a heat pump as your AC/heating unit. More efficient than traditional separated AC and furnace systems, the heat pump model uses the same compressor, as well as the same air-handler. So once again, the answer is yes! Your heating and air conditioning filters are one and the same.

Now is the time of year when you should consider replacing or changing your furnace filter (or air conditioning filter) in order to be ready for the colder weather that’s ahead. Also commonly known as whole house air filters, you want your furnace filter to be clean and ready to provide you and your family with the freshest air possible in your home during the coming winter months.

I didn’t even know that my furnace had a filter, so how do I change it?

This question is often asked by homeowners that don’t have central air conditioning systems. In many older homes, especially in the northern states and sections of the US, a lot of the houses do have a central heating system and a furnace, but only individual wall-mounted AC units (or no air conditioning at all).

So here are the three steps you need to take to properly change your furnace filter:

  1. Remove the old existing filter. It will be housed inside of your furnace, or sometimes it’s located inside of the air return vent. Remember to first turn the furnace off!
    We also recommend that you take a good look at the little arrow on the old filter that indicates the direction of the air flow. A great idea is to mark the air flow direction on the outside of your furnace with a non-erasable pen (to ensure that you’ll always remember the correct way to re-install the furnace filter in the future).
  2. Replace the old filter with a brand new one. When removing the old one, take a look on the frame of the filter for the size. If you find that you currently don’t have an old filter in place, measure.
  3. Be sure to purchase the right filter for your furnace. A quality filter will make sure that dust, pollen, and smoke are removed from the air, plus ensure that you and your family will breathe the freshest air possible while your furnace is in use.
  4. Install your new filter. If covered with a plastic wrapper, be sure to remove the wrapper before installing it. After looking for the markings which indicate the direction of airflow, simply slide the new filter back in place. Replace any cover that was previously over it. It’s also a good idea to write down the date that you changed your filter in your records or right on the filter itself so you will be certain as to when it is time to change the filter again.

Choosing The Correct Furnace Filter

Selecting the filters that are just right for your home can be difficult and confusing at times. Although not exactly rocket science, choosing the best furnace filter to replace your old one can be a bit of a challenge. What MERV rating is best for my family? Is there an advantage to getting a higher-rated filter? Am I paying the right price?

We understand this, which is why we offer an experienced staff to help answer any questions you may have. For personal assistance with your air filter needs, please contact us now online or call us at (855) 237-1673 and we will do our very best to assist you in selecting the right filter for your individual needs. We want to earn your business and we guarantee your satisfaction! Take advantage of our quality products, vast selection, low prices, and enjoy FREE SHIPPING on every air filter order within the Contiguous USA.

 

 

 

WHAT’S THE DIFFERENCE IN MERV RATINGS FOR AIR FILTERS?

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MERV stands for Minimum Efficiency Reporting Value. The MERV system was designed by the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) as a scale to measure the effectiveness of air filters. Basically, this system allows you as the consumer to easily and effectively compare air filters to each other. It means that any MERV 8 rated filter, for example, will filter the same as another. Though there may be some slight differences in construction and quality between manufacturers, the MERV system provides clarity as to the level of filtration you can expect from an air filter with a certain MERV rating.

MERV ratings range from 1-16 and address the performance level of a filter as it relates to removing airborne particles from 0.3 to 10 microns. Airborne particulates are referred to in microns. How small is a micron? A micron is 1/1000 mm which is 1/25,000 of an inch. Although it may be possible to see particles as small as 10 microns under the right conditions, particles are typically visible beginning at about 20 microns. To put it into perspective, a dot (.) is about 600 microns.

System Protection Level Dust Control Level Allergy Concern Level
MERV 8 Good Good Mild
MERV 11 Better Better Moderate
MERV 13 Best Best Severe

HEPA FILTERS

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Many customers ask us about purchasing HEPA filters for their home air conditioning systems. To help answer any questions that consumers may have, here are some facts and information regarding HEPA filters and their use.

The HEPA Filter and the home environmentWhat Is a HEPA Filter?

HEPA stands for High Efficiency Particulate Absolute and such filters have been around for over 70 years now. Few know that the original HEPA filter was actually designed for use in the Manhattan project during World War II to prevent contamination to workers by airborne radioactive particles. Originally manufactured for commercial use in the medical industry in the 1950’s, the term was actually a Registered Trademark. As time passed, the term became synonymous as a more generic reference to highly efficient filters for air conditioning systems. Further confusing the situation is the fact that the definitions of HEPA filters also include all of the following:
– High Efficiency Particulate Absorber Filter
– High Efficiency Particulate Arresting Filter
– High Efficiency Particulate Arrestance Filter
Lastly, there actually are HEPA filters that are used in water purification systems also. These are useful for removal of contaminants found in the water and therefore the term HEPA air filter is not even applicable.

Uses of HEPA Filters

HEPA filters are used today for many commercial reasons, but primarily for medical purposes (such as the compounding of IV solutions by infusion pharmacies & hospitals and in pharmaceutical drug manufacturing), high-tech industries such as integrated circuit manufacturing and aerospace, plus additionally in both the aircraft and automobile industries. A filter can only be designated as HEPA if it meets the DOE (United States Department of Energy) standards and guidelines. To do so means that the filter must remove at least 99.7 percent of all particulates that are above 0.3 microns in average diameter. To give it some perspective, a micron is equivalent to about .00004 inches. As a comparison in size, a human red blood cell is about 5 microns across and a human hair is about 75 microns across.

Additionally adding to the existing confusion associated with HEPA filters is that the National Institute for Occupational Safety and Health (NIOSH) has further rating classifications for them in regards to both their total and local retention capabilities. NIOSH categorizes them further regarding local retention as:
H13 > 99.75%
H14 > 99.975%
U15 > 99.9975%
U16 > 99.99975%
U17 > 99.9999%

HEPA Filters for Home Air Conditioning Use

Using a HEPA filter in a traditional home air conditioning system is uncommon and not recommended. Although specialty homes have been built that accommodate their use, the installation of a true HEPA filter would require a costly modification to a typical home HVAC system. A professional would have to redesign the existing AC system because both the air-handler and the duct-work would not be able to handle the increase in airflow resistance. Plus the size and cost of the HEPA filter would be prohibitive. According to the EPA (United States Environmental Protection Agency), AC filters with a 7 – 13 MERV rating are as “likely to be nearly as effective as true HEPA filters” for use in your residence or home.

Additionally, there are numerous products available on the market that are advertised falsely as HEPA filters. Consumers are advised to be wary of packaging labeled with the following terms:
– HEPA-type
– HEPA-style
– 99% HEPA
– HEPA-like
These terms are misleading and can be applied to any filter by anyone, even if the filter is of inferior quality and does not even come close to the specifications required to be a “True HEPA” filter.

The HEPA Filter For Home Use – The Bottom Line

So many people THINK they have or can have a HEPA filter (most likely because of the companies that falsely or loosely portray their filters as such). There really is no easy or inexpensive way to have true HEPA filtration in a home environment as it is much more than the filter. HEPA is an entire system configuration as well as having a positive-pressure seal on the building, such as in a hospital. Hence, the whooshing sound when doors are opened or closed. You cannot achieve that in a home (you CAN get that in a vacuum cleaner, though, since the system can be sealed). Also, HEPA filters are made to order for each customer in a sterile lab setting and each is individually tested and comes with its own testing results specific to that actual filter alone. HEPA filters have numerous variables that must be determined before production, such as frame materials, media capacity, sealants, gaskets, and type of factory testing requirements. No HEPA filter can be shipped by regular ground and must be sent with a private carrier. HEPA filter cost can range from about $200 to over $1000 per filter, plus freight charges. So as you can see by this information, these are clearly not intended in any way for home use. Again, it is not completely impossible to have a HEPA system in a home setting. However, it is a very specific and cost-prohibitive option that would not likely be accomplished as a retro-fitted option. In other words, the most probable way to achieve a HEPA environment is to have the home initially constructed under HEPA requirements.

Have Questions?

If you have any questions about HEPA Filters (or any other questions about AC, furnace, custom air filters, Whole House filters or Grille filters), please call us now at (855) 237-1673 or contact us online. We have courteous, professional experts available who are ready to help! We know that sometimes selecting the correct AC or furnace filter can be difficult and confusing at times. We understand that selecting the right filter for your home is an important decision, which is why we strive to go beyond simply providing air filters and give each customer the personal assistance that they deserve.

 

WHY CHOOSE CUSTOM AIR FURNACE FILTERS

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Air filters keep atmospheric dust and other airborne particles from surface buildup on heating and cooling system`s fan motor, coil and drip pans.  Without clean air filters, a furnace or air conditioning system cannot operate properly and leads to costly repairs and replacements.  It is imperative to maintain air filters by checking them regularly and ensuring they fit properly to your system. This is where custom air filters can be extremely beneficial. You want the air to move through the filter, not around it so it is important for the filter to fit the air return.  At US Home Filter, we can walk you through a step by step process to determine the appropriate air filter dimensions for your heating and cooling system and deliver your custom air furnace filters straight to your door.

Once you have determined the size of the filter you need, it is important to change your custom air furnace filter on a regular basis.  This will allow a constant flow of clean air into your home to help avoid respiratory difficulties, allergies, and illness keeping your family safe and comfortable.  It will also allow your system to work efficiently increasing its performance and longevity and decreasing energy bills.