3-stage filtration eliminates 99.97% of pollutants as small as 0.3 microns， pre-filter: filters larger particles such as dust and pet hair hepa filter: removes airborn micro particles such as allergens， bacteria， dust mites， pollen， and pet dander， activated carbon filter: reduces household odors such as cooking smells and second-hand smoke

Filters up to a 93 sq. ft. room， 5X per hour

Air quality indicator lights change color according to the amount of pollution detected by the particle sensor blue = excellent， green = good， purple = fair， red = poor

Average CADR (Clean Air Delivery Rate): 66.4 CFM Dust: 65.8 CFM， pollen: 77.5， smoke: 55.8 CFM

Touch controls

Low， high， auto and sleep settings

Shut-off timer: 1， 2， 4- and 8-hour selections

Child lock

Replace filter indicator light with audible sound