mbeat® Air Purifer HEPA Replacement Filter Specifications Filter: Consisting of: Fine Preliminary Filter Layer + H13 HEPA Filter + Activated Carbon Layer Filter Lifespan: Approximate 6-8 months Product Size: 162mm × 162mm × 172mm Product Weight: 350g Package Size: 167mm × 167mm × 180mm Package Weight: 475g Package Contents: 1 × True HEPA H13 Filter *Indoor use only.