Collection: Austin Air Standard Size Replacement Filters

Keep your air purifier running at peak performance with Austin Air standard size replacement filters. Designed to last up to 5 years under normal residential use, these filters provide powerful removal of dust, allergens, chemicals, and other airborne pollutants.

Compatible with all standard size (HM400 series) Austin Air units, each filter includes a pre-filter (black or white) for complete air purification. Choose the filter that best fits your needs—from everyday air quality to advanced chemical and allergy protection.