Exhaust fan is used to expel hot air out of the factory. The fans that are available in the conventional market are not like our fans. Our fan is a little different than other fans because we pay more attention to the quality of the product. And for this we make every product in such a way that we can give the best to the customers from all sides. In our fan we have alignment system in every fan has balance with each fan so that the fan does not vibrate. We use one unit double bearings which cost 1230 taka. Other bearings cost 270 to 300 taka. We have a 2 mm thick aluminum fan in the fan. We use 18 gauge set on the body of the fan. The iron of our fan is always at a 90 degree angle so that there is no difficulty in getting air out.