Harshad fabricators provides an air ventilator that needs no electricity, hence no operating cost and no maintenance. As it runs on wind energy, it is the most economical air ventilator, ideally suited for industrial sheds, factories, hospitals, restaurants, hotels, warehouses, paint shops and even domestic use. Material of construction: available in aluminum and stainless steel [ss 304], with powder coating and anodizing done on request. Principle: utilizes wind energy to induce airflow by centrifugal action. The centrifugal force created by rotating vanes in turn creates low pressure zone which draws fresh air from outside, thus replacing polluted air/hot air continuously. Minimum wind pressure will spin ventilator and even after the wind has stopped, the flywheel effect of ventilator will use its stored energy to rotate and to maintain fresh airflow.
