When choosing a centrifugal fan, in addition to paying attention to the air volume, total pressure, efficiency, speed and motor power of the centrifugal fan, the sound pressure level of the fan should also be paid attention to. If there are people working within the working range of the centrifugal fan, too much noise will damage the health of the staff, so it is necessary to consider configuring corresponding noise reduction and shock absorption equipment.

It should also be noted that if it is not necessary, try not to use multiple centrifugal fans to work in parallel or in series. If you have to use multiple devices, you must choose centrifugal fans of the same model and performance, and when using the series method, you must be in the same position. A pipeline connection is provided between the two-stage fans.