Keep Your Pollution Control Unit Clean!

About PCU Filters


The WoolGuard Pleated Air Filter incorporates 100% New Zealand Wool media with an ASHRAE 52.2 average atmospheric efficiency of 40% to 50%, and an average arrestance exceeding 90% by weight. The 2″ filters handle velocities up to 500 fpm – the 4″ filters up to 625 fpm. The wool media is bonded to a metal grid on the air-exiting side, preventing fluttering, and maintaining uniformity of the pleats. The wool filter pack is enclosed in a heavy-duty, moisture-resistant, die-cut frame that will not warp, crack or distort under normal operating conditions. Front and back media retainers are an integral part of the filter frame. The wool media pack is bonded to every part of the frame, preventing any possibility of air by-pass.


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Saves Money

By blocking 98% of kitchen grease (as opposed to 18% with traditional baffle filters), you can reduce the amount of hood cleanings up to 75%. For example, if you do quarterly hood cleanings, you likely only need to do them yearly.

Easy to install

When your filters are at the end of their lifecycle, simply remove the frame from your hood system, pull it apart, and insert a new filter.

No Water/chemicals

With 75% less hood cleanings, you won’t need to use as much water and chemicals. Also, with the frames staying clean, there’s no need to continually run them through the dishwasher.

Less Fire-Risk

WoolGuard Hood Filters capture 98% of grease before it ever enters the exhaust system, reducing grease build-up and the risk of fires.

Eco Friendly

WoolGuard Hood Filters filters are made from 100% wool. The filter is carbon-neutral and will breakdown in a landfill.

System Efficiency

With a cleaner hood system year-round, the entire exhaust system, hood, rooftop fans, HVAC and other equipment will run more efficiently.

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