Air Ventilation is the intentional movement of air from outside a building to the inside. Air Ventilation used for providing acceptable indoor air quality. The vents or flues carry the impurities to be expelled from the building, in a way which does not cause harm to the occupants of the building.
The centrifugal force generated by the spinning vanes, creates a low-pressure region which helps in suction of the air. Air drawn out by the suction action is continuously replaced by the fresh air from outside. Easy to install, these ventilators have very low maintenance cost.