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PreVent® Fan Shroud Filter for Back of Fan - Disposable (12 Pack)

Regular price $257.92 Sale

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Measure according to the instructions below, do not use the size listed on the fan. After ordering, send us a message with your fan's motor diameter. We will email you if we don't hear from you. If we don't hear back within a week, we will process the order with a 5" or 6" motor cutout at our discretion. 

Choose size in the dropdown menu above. 

12 Pack, white dry polyester media (no tackifier)

The PreVent Fan Shroud filter fits over the circular back side of a fan guard grill to stop dust and dirt from entering the fan and blowing out into the environment.

The Permatron PreVent Disposable Fan Shroud Filter is made of non-woven polyester and includes an elastic edge. Twelve filters included in purchase price. More sizes available, contact us here with your size requirement.

Measure UP and OVER the front half of the grill as shown in the video. For flat faced fans, see the photo below the video:



Processing plant workers, as well as items manufactured with heat, require air cooling. Typically this cooling comes from recirculating fans that blow onto the product before it can be packaged or onto workers manning the assembly line. Unfortunately, the recirculating fan components can also become covered in airborne contaminants as the equipment air intake draws in facility air, picks up the environmental particles which then spread throughout the motor, blades and fan guards, and can potentially be blown back out into the facility and onto the finished product.

The fan shroud air filter fits securely on the backside of a fan guard, covers the backside of the fan cage and wraps around the motor encasement, held securely in place with an elastic edge attachment and hook/loop closure.  The fan shroud air filter material attracts and holds the particles before they can enter the equipment, eliminating particle build-up and blow-off. Easily removed, the disposable polyester fan shrouds can be changed out and disposed of depending on the facility needs. Worker indoor air quality, the cooling equipment, and the freshly made products stay clean.

PreVent® equipment protection bonnet fan guards, fan shrouds, vent caps, ceiling diffusers and inlet/outlet sock style air filters are also available in washable electrostatic polypropylene.

Features and Benefits

  • AIB Safety Audit and Inspection guidelines used in food processing plants include Dust Collection and Filtering Devices be put in place to prevent possible contamination to food products from threads, lint and fibers. Bonnet filters or fan shrouds would enable a facility to pass the AIB audit.
  • Dry type non-woven polyester thickness .25”; initial air flow resistance .06 in” w.g.
  • Uniform blue coating of tackifier spray bonded onto fibers for higher dust holding

May be compressed for shipping.

Due to possible materials shortages and unforeseen events, by ordering you consent to any handling time. Orders for this item are final.