HEPA type filter helps remove up to 99% of airborne particles as small as 2 microns from the air passing through it3 speed settings provide options for different conditions, and optional ionizer assists in particle removalSlim dual positioning design can be placed vertically or horizontally to best fit your spaceRecommended for rooms up to 109 sq ft (10ft x 11ft), Smoke CADR 70Use any Holmes AER1 Series Filters or Holmes HAPF30D-U2 HEPA TYPE or Holmes HAPF300D-U2 TRUE HEPA Filter & a Holmes Arm and Hammer Carbon Filter AOR31
