AGF Manufacturing announced the PURGENVENT Air Venting Valves designed to remove excess air from sprinkler pipes for the new NFPA 13 venting requirements. Malvern, PA – July, 2017 – AGF Manufacturing ...
“The purpose of masks is to keep respiratory droplets from reaching others to aid with source control. Masks with one-way valves or vents allow exhaled air to be expelled out through holes in the ...
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