Improve your indoor air quality with the GermGuardian 4-in-1 Digital Air Purifier. Perfect for allergy sufferers, the HEPA filter captures 99.97% of dust and allergens as small as 0.1 microns in size, while the charcoal filter captures odors! More than just a filter, the UV-C light helps reduce airborne bacteria, viruses, mold spores*, and works to reduce volatile organic compounds (VOC) that pass through the unit. Standing 22 inches tall, it is lightweight and ideal to use in rooms up to 153 sq. feet. Includes a programmable timer for up to 8 hours, UV-C control and a filter, and UV-C bulb replacement indicator. Choose from 5 speeds, including a low speed that runs ultra-quiet. Additionally, the digital display panel allows for easy control of all 5 speeds, programmable timer, and UVC control. *Tested with Staphylococcus Albus, and Escherichia Coli, Aspergillus Niger, and Phi-X174