The QuFresh Portable HEPA Construction Air Scrubber's effective 3-step filtration can improve your air quality in nearly any indoor environment, from water damage restoration projects in a home, in a bedroom or living room, in construction site work, hospital rooms, offices, gyms, commercial shops, and more. This air scrubber unit is constructed using a durable rotomolded polyethylene housing to stand up to hard wear-and-tear during it's life and features a pre-filter for large debris capture, a carbon filter for odor reduction and dust filtration and a true HEPA filter for small particle capture down to 0.3 microns with 99.97% effectiveness. A built-in handle and foam cap for filter protection make this air scrubber easy to move from room to room, and no installation is ever required. Simply plug into a standard electric outlet to begin eliminating particles such as dust, odors, smoke, and other pollutants from your air for a better working and living environment.