The Coronado 1448 humidifier filter pad features foam media that is designed to efficiently disperse clean, humidified air into your home to provide relief from dry air. This is highly beneficial to those with breathing issues and respiratory conditions. This replacement humidifier filter has an approximate size of 6″ x 65″ x 3/8″ and is a cut-to-fit pad that can be trimmed to fit your humidifier unit. USHomeFilter recommends changing your Coronado humidifier filter pad 1-2 times each year.