The turbine shaped Turbovent fan is a vertical mounted uit on the top of the roof of closed covered area space from where the unwanted hot air gases and fumes are evacuated continuously and round the clock without any extra effort or expenses incurred on use of costly electricity, which is there in the case of motor driven industrial exhaust fans. The normal environment of any workplace, factory, process house shed, kitchens, in hotels, boiler houses, workshops etc demands good ventilation for healthy atmosphere. Turbovents work efficiently within the normal available parameters of temerpature, pressure and height of roof in most of the locations needing ventilation of polluted air.