I think that it‰??s worth mentioning that I‰??ve had experience with properly vented flammable cabinets that the flame arrestors corroded and gummed up within about 5 years of installation and significantly reduced air flow through the hood. The screens were welded into place, so replacing them was not an option.
Ralph Stuart, CIH, CCHO
Chemical Hygiene Officer
Keene State College
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