awp - Member - The Prepared

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Reply to: Best gas masks and respirators for survival Posted July 6, 2020

Hi A2 — I have the same 3M 7500 mask as you and the same concerns. I tried to cover the exhalation port with a cut up mask, but it’s been hilariously hard to exhale (exhaling too hard will cause my breath to just come out from the sides of the mask, instead). Have you had any luck filtering your Cool Flow valve?

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Reply to: Best gas masks and respirators for survival Posted July 6, 2020

Hi A2 — I have the same 3M 7500 mask as you and the same concerns. I tried to cover the exhalation port with a cut up mask, but it’s been hilariously hard to exhale (exhaling too hard will cause my breath to just come out from the sides of the mask, instead). Have you had any luck filtering your Cool Flow valve?