WBM Smart HEPA Filter Air Purifier for Home, Pets and Allergies Hair Smokers in Bedroom, White

Air purifier replacement filter removes 99.97% of potentially harmful particles as small as 0.3 microns. 3 in 1 filter have 3 functions: 1 pre-filter, 2 activated carbon filters, and 3 Hepa filters. It's designed to provide maximum air quality for you to breathe. It is recommended to replace after 2-3 months.