USHA Crisp Air Premia AF 150 mm Anti Dust 6 Blade Exhaust Fan (Silver)The Crisp Air Premia exhaust fan by Usha effectively controls the quality of air in an enclosed kitchen space or bathroom by getting rid of moisture, smoke, fumes and bad odour. The automatic back shutter operation and strong, rust proof body makes this window ventilating fan the very best in its category and ensures that you dont have to worry about changing it for a long time. The chic white color of this Usha exhaust fan lends it an elegant appeal.