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Know What HEPA Filter Is & How It Works?

HEPA Filter

The top air filtration method is represented by a HEPA filter. When it comes to air filtration, the True HEPA filter is the best option available. And the explanation for this is straightforward: All filters are put through a specific test before being branded as True HEPA filters or something else. Filters will have a HEPA label on them if they meet typical HEPA standards. The usage of HEPA filters is widespread in equipment that needs to filter air or filters air. Later in this essay, we shall discuss all of these gadgets.

How Does HEPA Work?

“High-efficiency particulate air” is what HEPA stands for. It is a standard for air filter effectiveness. HEPA, HEPA-like, HEPA style, and HEPA type filters, however, differ significantly from one another. Even some manufacturers label their filters as having 99% HEPA. While failing the tests, several of them also refer to their filters as HEPA. Because of this, several companies now utilize the True HEPA filter name on products that actually pass a HEPA test. The only explanation for that is the prevalence of bogus HEPA claims.

The HEPA Filter Was Created By Who?

During World War II, Germany utilized the first HEPA filters. One of the German gas masks contained a HEPA filter, which the British forces discovered. British people replicated it and began mass production. The 1940s saw the testing and development of a True HEPA filter, nevertheless. The Manhattan Project focused on removing radioactive pollutants from the air. The first trademark was registered and used for commerce after ten years, in the 1950s.

How Do HEPA Filters Function?

HEPA filters stop contaminants from entering the filtering system. Hence these are also used in air purifiers to protect Allergies. The majority of them employ fans to draw air in and filter it in this manner. The HEPA filter’s job is to capture particles that have already entered the system. 99.97% of airborne particles smaller than 0.3 microns can be captured with a True HEPA filter. Standards are set at 99.95% in the European Union.

There are four techniques to capture particles as they enter the HEPA filter.

A Direct Hit

Direct impact has the ability to capture large particles. The particle merely collides with the filter and remains there.


A particle gets trapped in the filter hole if it is larger than the opening.


A tugging air stream’s inertia will cause small particles that can pass through the gap to adhere to the side of the fiber.


Light and swiftly moving, ultrafine particles are small. They are almost ready to stick to the fiber at that precise moment.

HEPA Filters Are Produced Where?

These sophisticated filters are typically composed of glass fibers that have been interwoven. A maze-like structure built of twisted combinations of fibres gives the impression of being formed of fibers. The effectiveness of HEPA filters is due to their web-like structure.

Read More –  Guide For Choosing Air Filters For Your Home’s HVAC System

Are All HEPA Filters Created Equal?

HEPA filters vary in quality. In contrast to the US, where requirements are stricter and HEPA filters must collect 99.97% of airborne particles larger than 0.3 microns and are mostly used in US air filter systems, European HEPA filters must capture 99.95% of these particles.

Although many filters bear the HEPA name, they don’t adhere to the required specifications. Always check the filter’s correct ratings to determine whether it meets the HEPA requirement. Marketers still use the HEPA certification in their branding despite the fact that many filters are not even tested. If you truly want to get a HEPA grade filter, exercise caution and avoid falling into that trap.

HEPA Filters May Be Washed.

When thinking of air filter maintenance by no means is it impossible to wash the HEPA filter. Since HEPA filters are made in a specific way, any interference with the filter may cause damage to the filter’s structure, causing your HEPA filter to function like a standard filter. In other words, the filter will not function at the HEPA standard efficiency if it is damaged in any manner. As a result, we don’t wash HEPA filters. If your manufacturer had, for some reason, designated your HEPA filter as washable, I would make sure I actually owned a True HEPA filter. And even if I did indeed have a HEPA standard filter, I wouldn’t wash it.

What Environments Use HEPA Filters?

Many modern devices are equipped with HEPA filters. In addition to other establishments that can benefit from clean air, HEPA filters are used in homes, hospitals, businesses, the food industry, the nuclear industry, pharmacies, and cars. HEPA filters can be found in air purifier system, vacuum cleaners, air conditioners, home air purifiers, dehumidifiers, humidifiers, ventilation systems, and other equipment that needs clean air for use in the home.

Choosing the filters that are ideal for your home can occasionally be challenging and perplexing. We are aware of this, which is why U.S. Home Filter provides knowledgeable employees to assist with any inquiries you might have. Please get in touch with us right away online or give us a call at 855-435-9600 if you need personal assistance choosing the best air filter system for your particular requirements. Your satisfaction is guaranteed, and we hope to earn your business. Profit from our high-quality air filter for your home, extensive choices, affordable rates, and free shipping on any order of air filters placed inside the Contiguous USA.

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How Do HEPA Air Purifiers Disinfect Germs Viruses and Smoke

HEPA air purifiers

In Covid-19’s fight, products such as disinfectant sprays, face masks, and touchless garbage cans, are being pushed as essential. According to medical experts, one additional item that people should be adding to their arsenal is an air purifier. A good air purifier is not only helpful in eliminating airborne dust, pollen, smoke, and other irritants but can also keep dangerous germs and bacteria at bay. 

How Does an Air Purifier Work?

Air purifiers eliminate germs, dust, mites, pollen, and other potentially hazardous particles by drawing air into a chamber and passing it through a filter. The air is returned to your house once it has been cleansed by the air purifier.

The finest air purifiers can also absorb or filter out smells like those caused by cooking or smoking. A few air purifiers also have a heating or cooling option, allowing them to function as a stand-alone fan or heater when the weather changes.

What is a HEPA Air Purifier?

HEPA filters (high-efficiency particulate air) are used in the best air purifiers to collect more particles from the air.

A standard air purifier filter has a design and filtration ability similar to that of a coffee filter. These are among the most popular air filters in today’s homes and offices. Despite being expensive and hard to locate a few decades ago, HEPA filter air purifiers are now used everywhere, from homes to automobiles, to planes to medical facilities.

True HEPA air purifiers capture 99.97% of particles as small as 0.3 microns, including allergens and odors. A HEPA-type filter, on the other hand, can catch 99% of particles 2 microns and larger, such as pet dander and dust. While these particles are too small to be seen with the naked eye, they are large enough to enter your lungs and cause problems.

The smaller the micron, the harder it is to filter out of the air. To put it into perspective the human eye can detect a particle that is approximately 10 microns. Bacteria can be as small as 0.3 microns, which is why 0.3 micron industrial HEPA filters are used in pharma companies


Can an Air Purifier Help With Viruses?

It’s both a “yes and no” answer. According to the CDC (Centers For Disease Control And Prevention), these units can help “reduce the airborne concentration of the virus that causes, for example, Covid-19 (SARS-CoV-2), lowering the risk of transmission through the air.” 

HEPA filters will catch 99.97% of particles with a diameter of exactly 0.3 microns. Particles of that size are ideal for passing through the filter’s fibers, but bigger and smaller particles collide with the structure as they flow through the air. 

Although the new coronavirus is 0.125 microns in diameter, the droplets it travels in – when individuals cough, talk, or breath – are initially bigger, approximately 1 micron in diameter. Experts say it’s a size that HEPA filters can readily absorb.

Nonetheless, you still have to follow the usual precautions, such as washing your hands with soap and water, using hand sanitizer wearing a protective face mask when in close contact with others.

Have More Questions on the Best HEPA Filter? 

Our knowledgeable staff at US Home Filter will provide you assistance in choosing the best filter to guard against COVID-19. No matter whether you are looking for a HEPA filter for your home or business, you can get the right filter from a wide selection of air conditioners and heaters. You can contact us online or by phone at (855) 237-1673 if you need assistance choosing an air filter. We strive to meet your expectations! With our quality products, variety, affordable prices, and FREE SHIPPING on all contiguous United States air filter orders, you won’t be disappointed.