Air Max Fans are industrial grade, high velocity, venturi style tube axial fans! Many larger and more expensive fans will not give you the performance of Air Max Fans. The velocity and the distance from the fan that useful cooling can be detected is your primary consideration. Our aluminum blades are very rigid and do not flatten out at high rpm and reduce performance. Unlike most fans on the market, Air Max Fans project air at high velocity and for a long distance. Often one Air Max Fan can replace several conventional fans.  By using fewer fans you can expect reduced operating cost, less repair cost and down time.