Nispira 3-in-1 premium filter replacement compatible with HIMOX Air Purifier H05. Pre filter helps extend HEPA filter life span by preventing hair, dust and debris from entering the filter and the device. High quality True HEPA filter capture 99.97% of airborne particles down to 0.3 microns. Activated charcoal deodorizes the unfavorable household smell such as smoke from cigarette, cooking smell, pet smell. It also captures any harmful VOC chemical to bring you peace of mind for the indoor air. 2 filters will be included. Suggest replacing the filter every 6 months to optimize the performance. Dimension: 16.5" x 10" x 2" in