Breathe better with the Homedics Air Purifier, featuring 3-in-1 purification that removes up to 99.97% of airborne allergens as small as 0.3 microns. The True HEPA filter, activated carbon odor filter, and prefilter work together to reduce odors, VOCs, and larger particles. Enjoy aromatherapy with the included essential oil tray with 3 pads, 3 fan speeds, plus whisper-quiet operation. Convenient carry handle make it effortless to use anywhere. Ideal for small to medium sized rooms, this purifier refreshes the air in just minutes. Enjoy consistent, long-lasting air filtration.*Removes up to 99.97% of airborne particles as small as 0.3 microns from air that passes through the filter media.**Air changes per hour are based on measured smoke CADR volume flow and 8-foot ceilings.†Reduces formaldehyde and toluene in the air as shown by independent laboratory testing. Reduces common household odors such as pet, bathroom, laundry, diaper pail, cooking, and smoke as shown by independent laboratory testing.††Based on 12 hours per day for 365 days.