Active Air Carbon Filter, 6" x 16", 400 CFMKeep the air in your indoor grow room clean and breathable using an Active Air Carbon Filter. Its virgin activated Australian granular carbon removes all kinds of odors, fumes, volatile organic compounds, and gaseous pollutants from the air that moves via its micro porous carbon surface. The carbon filter has a lightweight design for easy transportation. Active Air Carbon Filter is also machine packed and includes a pre filter. Features: Attached