If you’re like most homeowners, you likely believe your HVAC system’s air filter does an adequate job cleaning your home’s air. In reality, HVAC air filters have minimal effects on your home’s air quality. Their purpose is to protect your HVAC system’s components from gathering dust and dirt. You’ll need an upgrade if you want your HVAC system to clean your home’s air. Evergreen Heating & Air LLC sells and installs air purifiers in Statesville, NC for that purpose. The best air purifiers remove up to 99.97% of contaminants. They can ensure you and your family always breathe clean air.