Restock or change up your filter game with the Honeywell Filter H True HEPA Air Filter Replacement, 4-Pack. Honeywell Filter H True HEPA Air Filters are great for capturing microscopic allergens such as mold spores, dust, pollen, smoke, and pet dander that can come up in your home. Honeywell HEPA Filters are able to capture 99.7% of airborne particles at 0.3 microns from the air that passes through the filter. Absorbing common household allergens and particles, these Filter H replacement filters will capture those large pesky particles that can make breathing and allergies difficult. It is recommended that you replace your filter every year for top filter performance. Provide the best breathing experience for you and your family with the Honeywell Replacement Filter H True HEPA Air Filter 4-Pack.