The Broan 332H Exterior Blower (900 CFM 5.7 Amps) features a removable cover to help provide easy operation and easy maintenance. It offers you powerful ventilation performance at its very quietest. Using this exterior blower system helps to reduce kitchen noise by locating range hood blowers outside. The residential design fits unobtrusively on your home exterior. Plus the safety screen keeps small animals and debris away from the blower and motor.