HEPA Filtration: helps capture up to 99.97% of the following microscopic airborne allergens and particles: dust, pollen, pet dander, dust mite debris and smoke.Activated carbon pre-filter helps capture large airborne particles and reduces odors and VOCs.Independently tested and AHAM Verifide to circulate and filter room air up to 4.8 x per hour in a 190 sq. ft room.2New InSight™ Display at-a-Glance Panel illuminates to show which cleaning level is active