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Residential   | Light Commercial Page   |

Cottonwood Protection

Prevent Air Filter blocks cottonwood seeds from entering the air conditioning Condenser Coil.


PREVENT AIR FILTER for Commercial Units

Model U -  1" Velcro is used for Indoor Air Filters


A 1 1/4" Vinyl Edge with Grommets and Stayput Fasteners are used for Outdoor Air Filters.

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BHC Polypropylene - - -  Maximum Size  60" X up to  250" BHC  BLACK POLYPROPYLENE HONEYCOMB WEAVE


100 FPM 0.005"WG / 400 FPM 0.050"WG / 600 FPM 0.090"WG

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BHA Media for anything over 60" wide & up to 250" long BHA BLACK PVC COATED HIGH ABRASION MEDIA

9x9 1000 Denier Multi Polymer Coated Polyester Mesh


100 FPM 0.005"WG / 400 FPM 0.035"WG / 600 FPM 0.070"WG

Model R Prevent Air Filters have a 1/4" Metal Air Frame Filter fit into "U" Channel Track


Light Commercial Page

Commercial Air Cooled and Water Cooled Air Conditioning Application -

Call for Pricing

Millions of dollars and thousands of man hours are spent annually on HVACR system or sensitive equipment downtime, repair and maintenance. Failure to provide effective air intake protection to building or equipment fans, motors, heat exchangers and other process cooling systems adds up to a costly loss of productivity in safe and efficient system operations.

Permatron’s PreVent Equipment Protection Filters are made of permanent, washable polypropylene. A primary prefiltration defense, they help prevent the damage and extensive maintenance that large volumes of debris can cause. Custom sized to fit any air intake, PreVent is UV protected and stands up to extreme outdoor or indoor exposure, corrosive environments, high velocity air flow, as well as industrial cleaning and maintenance handling. Our simple solution to air intake filtration helps reduce operational and maintenance costs over a long useful life.

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Commercial Application

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Grommets only on Commercial Application

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Commercial Application

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Commercial Application


Model U - 1/8" Thick Vinyl Flexible Frame & Model R - 1/4" Thick Frame Stainless Steel Metal

Model R  - 1/4" Frame Stainless Steel. Black Polypropylene Honeycomb Fabric Single and Double Layer


Jack Nut Fastener for Model U Air Filters

Quick Mount 3/8" Stayput Fastener holds the Model U Prevent Air Filter

1 1/4" Vinyl Binding Edge


1 1/4" Vinyl Binding Edge

Quick Mount 3/8" Stayput Fastener Open and Closed Position with Stainless Steel Grommet 3/8" ID - 13/16" OD

Quick Mount 3/8" Open Position

Quick Mount 3/8" Closed Position


Permatron PreVent Outdoor Air Filter

New AC Systems

Existing AC Systems

Dirty Coils Reduce Heat Transfer and Increase Electricity Consumption.

Average Outdoor Air Flow through the AC Condenser Coil is 800 CFM / Ton AC.

A 5 Ton unit moves 4000 Cubic Feet per Minute Air Flow through the outdoor coil. 

4000 CFM/min x 60 min/h x 2000 hours/AC season = 480 million cubic feet of air / AC season.

Average Indoor Air Flow through the AC Evaporator Coil is 400 CFM / Ton AC.

Moisture in the system and Freon R22 Chlorodifluoromethane  CHCLF2 break down under high temperature & pressure to form HCL Hydrochloric Acid (strong acid) and HF Hydrofluoric Acid.

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