Replacement HEPA air filters are available for purchase from Grainger, Amazon.com and HEPA Air Direct, as of 2015. Consumers can find filters for HVAC installations, personal air purifiers and commercial filtration systems from these three vendors.
Grainger provides heavy-duty HEPA air filters primarily for HVAC systems and residential installations, and the company makes it easy for maintenance teams to keep filters on hand with automatic reordering of products at requested intervals. Grainger also simplifies purchasing online with easy side-by-side comparisons of products and useful documentation for many filters sold through the company, and customers may request answers to their questions directly on many product sales pages.
Amazon.com carries a wide selection of HEPA air filters, and many of the products available on the online marketplace are aimed directly at consumer electronics. Customers can use the rating and review system on Amazon.com to quickly gauge quality and learn more about user experiences with specific products. The intuitive filters and search features help narrow down search results by rating or price to help shoppers find the HEPA air filters they need. HEPA Air Direct manufactures replacements for many common filter types, and all products shipped from the company come with a satisfaction guarantee.