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PreVent® Fan Guard Filter for Back of Fan Intake - Washable

Regular price $61.87 Sale

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MEASURE UP and OVER the front fan grille as shown in the video below to get the overall diameter needed for the Fan Guard. For flat faced fans, see the photo below the video. Do not use the size listed on the fan.

Then measure the fan motor diameter and send us a message with your motor size before placing your order. Fan motor openings are rounded up to the next whole number, i.e. if your motor is 5-3/4", the opening will be made 6".

Extended handling time, built to order.

Choose size in the dropdown menu above. After ordering please send us a message with your fan's motor diameter. 

The PreVent FanGuard filter fits over the circular rear side of a fan guard grill to stop dust and dirt from getting sucked into the fan blades.


Measure UP and OVER the front of the fan grille as shown in the video, send us a message with your motor size diameter measurement. For flat faced fans, see the photo below the video:

The Permatron PreVent Washable FanGuard Filter is made of electrostatic polypropylene and includes an elastic edge.

Single filter included in purchase price.

More sizes available, contact us here with your size requirement.


Fan and Motor Bonnet Filter Media Pass AIB Food Processing Inspection (Article)

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 mobile and pedestal style air circulator 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.

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.

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