Maxxfan Deluxe 10 Speed 12V Ventilation Fan - Model No 00-05100KI This Maxxair Deluxe ventilation fan comes from a US company prominent in the RV industry since the late 1980s. The Maxxfan Deluxe is a recent Maxxair innovation that provides superior ventilation in combination with a large variety of user-friendly features. By simply twisting the L-clamps, the unit’s detachable flyscreen is extremely easy to clean, while its innovative useful “Ceiling Fan Mode” allows it to be operated (with both intake and exhaust settings) even when the lid is closed. Featuring an impressive 10-speed 12V fan motor, a rain dome eliminating the need for closing, specialized twin lifting arms engineered to limit wind vibrations, with manual opening.