Techflow Enterprises offers Low Pressure Centrifugal Fans and Blowers. Techflow Enterprises is an ISO 9001:2000 certified company. Low Pressure Centrifugal Fans and Blowers have impellers that are backwardly curved or inclined bladed type having flat of Airfoil designs. Backward or forward curved type fans are generally used for clean air duty. Single or double inlet styled fans is very efficient and useful for fresh air supply, ventilation and HVAC duties.