Product Details: Crompton Brisk Air Plus 150 mm (6 inch) exhaust/ ventilation fan comes with aerodynamically designed blades for faster speed and premium looks. Performance: This light weight exhaust fan has a 1300 RPM powerful motor that ensures a superior air delivery of 275 CMH Low Noise Operation: this Exhaust fan operates silently at low noise level that provides a comfortable and silent atmosphere. Superior Built: Crompton Ventilus is designed with convinience in mind and comes with Back flaps to prevent the entry of dust and foreign particles, which is also very easy to clean. Rust Proof Body: This Ventilation fan is built to last, the fan features that makes it Rust Proof and works efficiently in all weather conditions.