Nicholas Giampietro from Ossining, NY United States
I have quite a collection of masks, beyond the teens now and this Gp-4y is still my all time favorite mask. I do though have, instead of the small NBC filter, a large NBC canister, which is more protective, bu much harder to draw air. I'd trust my life with this mask, but like all masks, there is no guarantee. Update Sept. 14th 2009- I tested this mask with new filters with a 160z teargas grenade in a small room, it worked like a charm, I've also been using it in an old fallout shelter (location withheld) as a particulate filter, again it has not failed me for my mold allergy and universal allergy to asbestos! (You need a suit to work in an environment with asbestos, and you need to throw your suit and filter out when your done!)
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