Shop for Heating, Venting & Cooling at The Home Depot. The AM4000a by Airfoxx is one of the most powerful blower available. Its large and powerful motor delivers up to 4000 CFM which has been proven to dry any designated area up to 3 times faster than any other 1 HP Dryer. The AM4000a is design to dry all type of surfaces includes carpets, wet paints, floors, cabinets and more. It also keep the air ventilated at an enclosed area. The AM4000a will be ideal for use at work site, public area, warehouses, workshops, restaurant for air ventilation, janitorial duties, and for use to dry or cool down any type surfaces.