The TOTALCLEAN® 4-in-1 Air Purifier is perfect for the small spaces in your life from a smaller office, childrens room, study or smaller waiting room. The 360⁰ HEPA-type filtration removes up to 99% of airborne allergens as small as 0.3 microns. The carbon odor filter reduces odors and VOCs in the air while the pre-filter takes care of large particles. Fill your space with your favorite scent while keeping the air clean too with the bonus essential oil pad tray that allows you to add a couple drops of your favorite essential oil flavor. The built in nightlight feature provides a soft glow so no need to worry about keeping it on over night. Get fresh air every hour in rooms no bigger than 291 square feet and breathe easier.