AIR FILTER HEPA FILTER PROTECTS AGAINST Smog The air purifier will effectively remove mites, bacteria, dust, pollen, animal hair, fungal spores, volatile organic compounds ( cleaners, paints, adhesives, air fresheners, carpets, polishes, cleaning agents, deodorants, softeners, cigarettes), smog (particles PM 2.5). The device is intended for allergy sufferers, asthmatics , pet owners and all those who care about clean air around them. SPECIFICATION : remote control filter included touch control panel large readable display power: 35-45W power supply: 230V 50Hz high-quality bearing motor designed for rooms of 35-50m2 cleaning efficiency: 150-180m3/h silent night mode (lowest flow rate and lights off) automatically adjustable air flow speed real-time air quality monitoring timer three stage filtering filter replacement reminder negative ionization air sterilization noise level: