HEPA filter captures 99.97% of dust and allergens as small as 3 microns and larger, while filtering PM FAMTOP air purifier can cover an area of about 269 ft2 /25 m2 rooms with CADR of 120 + m3/h. 360 degree air intake and discharge maximizes fresh, healthy air at all times to give you a clean space.Silent Work & Eye Protection Night Light: Sleep mode works very quietly under 16dB. They won't even notice you're running while you're asleep and the small warm night light provides the most comfortable sleeping environment.Smart Design & Easy Operation: 3 adjustable speed and timer settings that automatically shuts off after 2, 4 or 8 hours of use to meet your fastest purification or quiet operation. Perfect for pet owners, babies, or anyone looking to improve the air quality in their home. The perfect gift for parents, office colleagues.