Maximum coverage: cleans up to 660 sq. ft. in 1 hour， 330 sq. ft. in 30 minutes 165 sq. ft. in 15 minutes based on average CADR for pollen， smoke， and dust when operating at fan setting 3， assumes closed room with 8 ft. ceiling， perfect for small rooms

HEPA H13 filtration: trusted to remove 99.9% of harmful particles including allergens， odors， VOCs， smoke， pollen， pet dander， dust， smog， contaminants， and more down to 0.1 microns in size， captures finer particles than HEPA H11 (0.3 microns)

Ultra quiet: choose from 3 fan speeds， with the lowest setting operating virtually silent， runs at 120 Volts at a maximum noise level of 53dB， perfect for running overnight for more restful sleep

Easy to use features: includes a sleek touch operation panel with a 0-8 hour timer， 3 fan speeds， filter replacement indicator， and child lock， great for babies， children， and pets