Max-Fan is a cross between a mixed flow fan and a centrifugal fan. They are designed specifically for high pressure situations such as those required in hydroponics by carbon filters and long ducting runs.
The compact aerodynamic design of the fan creates smooth, straight airflow and quiet operation while delivering maximum airflow under high static pressure.
The twin front and rear blade design enables the Max-Fan to reverse a good amount of the noise that usually travels with the airflow back into the carbon filter resulting in approximately a 50% drop in noise. Max-Fans are also extremely power efficient and use only a small percentage of the power other fans of similar output use.
When comparing fans it is important to know that not all manufacturer's fan rates are accurate. The flow rates stated below are certified under professional testing conditions. Some manufacturers do not test their fans to industry standards, some exaggerate the rates, while others just guess the flow rates.