... 3. Durable motor, long service life 4.6''/8''/10''/12' Exhaust fan / ventilation fan1. Power saving and Noiseless2 .Powerful efficient ... safe4. Easy installation, User friendly5. Available sizes: 6” , 8”,10",12"6. Material :New white virgin plastic7.High quality blade angle ... with us. SOME TYPE OF EXHAUST FAN; 6",8",10",12" Good quality ventilating fan