Improve your indoor air quality with the GermGuardian AC4825DLX 4-in-1 Air Purifier. Perfect for allergy sufferers, the HEPA filter captures 99.97 percent of dust and allergens as small as 0.3 microns in size. The optional UV-C light kills germs, while the charcoal filter captures odors. Titanium dioxide (TIO2) treatment combines with the UV-C, helping to reduce volatile organic compounds (VOC) that pass through the unit. Standing 22 inch tall, this GermGuardian AC4825DLX 4-in-1 Air Purifier is lightweight and ideal for use in rooms up to 167 square feet. It includes a UV-C control and a filter change indicator. This GermGuardian 4-in-1 air purifier allows you to choose from three speeds, including a low speed that runs ultra-quiet. Size: 22 inch HEPA Tower.