The Honeywell True HEPA Allergen Remover is designed for large rooms. This console air purifier will help provide cleaner, fresher air in larger rooms while still looking sleek and not taking up too much space. The True HEPA filter helps captures up to 99.97% of microscopic allergens as small as 0.3 microns. It also reduces odors, VOCs (volatile organic compounds). How the air purifier works: a fan continuously draws in airborne pollutants. The dirty air passes through the activated carbon pre-filter that traps large particles and absorbs VOCs, gases and odors.