5-Stage Filtration & 365-Day Filter Life: Provirtec 5-stage system filters at least 99.97% of dust, pollen, pet dander, and any airborne particles with a size of 0.3 microns. The air purifier for bedroom lasts up to 12 months, saving you time 360° Whole-Home Fresh Air: HEPA air purifiers for home With a CADR of 118CFM/200 m³/h, achieves one air change per hour in a room covering 916 ft², providing five air changes per hour in spaces of up to 183 ft². High Efficient Purification, Rapid Coverage for Every Room Air Quality Visualization & Purification at a Glance: High-definition display and air quality indicator light with color display provide real-time updates on your homes air quality. With precise PM2.5 monitoring and intelligent adjustment of purification levels, it ensures both efficiency and energy savings Quiet Control Embrace Restful Nights: The Provirtec smart home air purifier features a sleep mode.