The greatest HEPA air purifier bargains can be found right here! What are the benefits of HEPA air purifiers? High-efficiency particulate air is referred to as HEPA. A mechanical air filter known as a HEPA filter filters hazardous particles like pollen, pet dander, and dust mites by pushing air through a small mesh. How much does a HEPA air purifier cost? In other words, it depends on what you're attempting to achieve or relieve. HEPA filters can aid in capturing pet dander and other bigger allergens for persons with severe allergies. The cost might not be justified if all you want to do is refresh your air.