Small, but not compromising on airflow, this commercial grade air purifier features a ½ HP motor which generates up to 550 CFM. This unit's four stages of filtration include a carbon filter for effective odor control. The two outermost nylon mesh filters capture 90% of medium to large contaminants and can easily be removed and hand washed. The 3rd stage activated carbon filter effectively absorbs and neutralizes a wide range of odors and other pollutants. The final stage HEPA filter removes 99.97% of 0.3-micron sized particulates as well as other particulate sizes including bacteria, allergens, and sub-micron sized dust. A convenient indicator light notifies you when the filters need to be cleaned or replaced. A lipped air outlet can be easily ducted to channel purified air or create negative air pressure. Stackable and lightweight for easy transport, it is ideal for even the toughest water damage restoration and construction jobs.