Austin Air HealthMate HM400 Replacement Filter,Black,Each,FR400Price: USD289.99 Austin Air HealthMate HM400 Replacement Filter is used for Austin Air HM400 HealthMate Air Purifier (Code B400). This filter is a four-stage filter which provides more clean air faster and more efficiently. Other products from H e a l t h P r o d u c t s F o r Y o u |