HEPA filters are advanced air cleaners capable of capturing 99.97% of dust, pollen, and bacteria. While our standard Wall Mounts come with Washable Air Filters, some models allow for additional HEPA or carbon inserts. These inserts are great for people with allergies or those living in areas with high wildfire smoke. You can find these specialized Filters in our parts and accessories section. Maintaining clean filters is the best way to protect your Indoor Air Handler from dust buildup. This ensures your Heat Pump System maintains its high CFM output. Replacing these filters regularly is a core part of your Preventive Maintenance. It is an affordable way to turn your AC into a whole-home air purifier.