Maxair Features Overview: Installation Window Hole Size 230mm Extraction Rate 470 m3/hr Noise 53 dB(A) Motor Wattage 25w Ductable No The Maxair Window exhaust fans is available in two sizes featuring electric shutters to prevent back drafts. This model is one of the few on the market that can be installed solely from the inside, making it a popular choice for high rise buildings.
