This all-in-one unit can be wall-mounted or placed on a desktop or tabletop. Perfect for your workspace, bedroom, bathroom or RV. Can also be used in patient rooms, nursing homes, clinics and child daycare facilities. Multi-stage filtration send the air through pre-filter, HEPA filter, activated carbon filter and cold-catalyst filter. Removes dust, smoke and odors. The air then passes through a UVC light field for extra cleaning.