Improve the indoor air quality of your home or office with the powerful 100-watt Germ Guardian AC3900 tabletop air purifier. With the HEPA filter, this 1-touch air purifier can easily capture up to 99.97% of household dust, pet dander, mold spores and plant pollen for a clean, healthy environment. The UV lamp takes care of the germs and microbes captured by the filters while the carbon filter eliminates musty domestic odors and smoke. This small, compact and complete air cleansing system from Germ Guardian is suitable for rooms of 100 to 300 square feet. The UV air purifier has 3 speed settings for you to choose.