We introduce Vichtory vent, zero electrical power consumption ventilator (exhaust fan). The turbine shaped Vichtory vent fan is a vertical mounted unit on the top of the roof of covered area from where the unwanted hot air is to be evacuated continuosly. Which circulates fresh air in the bottom layer of shed without any electricity. This can be fixed in any kind of roofing such as metal roofing, asbestos, frp, and other roofing categories