About Engine Exhaust Scrubbers

Our exhaust scrubbers/air purifiers allow you to run a diesel or gas engine in a building, mine or tunnel. (Most of the equipment in Boston’s Big Dig tunnels use our Foley exhaust purifiers!) That way you can do your work and keep OSHA and MSHA off your back.
Our scrubbers are custom made so we can supply them for most engines. We also have short lead times so they can ship quickly. Just call us at 1-800-233-6539 with your horsepower and tail pipe diameter.
Questions about how to install a clip on scrubber? Check out this helpful video on How to Install an Exhaust Scrubber!
Need More Information? Follow the links or fill out our form below.








Foley Engines will be closed Friday, July 3rd, in observance of Independence Day as we celebrate and honor the country that has supported us since 1916. Please place your order by 1:30 PM EDT on Thursday, July 2nd for same-day shipping. Orders placed after 1:30 PM will ship on Monday, July 6th. Thank you for your business, and have a safe and happy Independence Day!