Usha Crisp Air Premia Bv 150 mm Exhaust Fan Series:Crisp Air Premia BV Dimension:7.1x7.1x4cm Color/finish:White Sweep:150mm Voltage:230V Frequency:50Hz Material:Plastic No of Blades:7 Speed:1350RPM Power:21W Air Delivery:210 m3/Hr No of Speeds:1 Includes:Ventilating fan,Instruction manual and Warranty card Suitable for your bathroom or kitchen,this stylish exhaust fan comes with an automatic front shutter and promises low noise performance.Ideal for glass window installation Ideal for mounting on a glass window 100 Percent copper motor for longer performance Automatic front shutter for easy operations Light weight and low noise performance Bathroom ventillating fan with automatic front shutter.Please note:150 mm is the sweep size (Blade diameter) of the fan and should not be confused with the frame size dimensions.Please refer to the scaling diagram provided for information on product dimensions Shaded pole motor design for long lasting operation Rust proof body and blades 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 don���t have to worry about changing it for a long time.The chic white color of this Usha exhaust fan lends it an elegant appeal.Sweep size mentioned in product title is the dimension (diameter) of the blade.It should not be the sole criterion for you to make a purchase decision.Before buying an exhaust fan,it is important to consider a few other factors such as the dimensions of the duct (length,width),available space around the duct from the ceiling or side walls,whether installation is done on glass or concrete wall,etc.Accurate knowledge of the duct dimensions will help you make precise comparisons with the dimensions provided in the image.This will be your purpose and make your purchase seamless