I cut up an old N95 mask and put it over the exhale valve to protect others. I don’t see how many liquid particles could get out of the check valve and cover, but if anyone knows what they’re looking at they know a respirator only protects the wearer. Maybe they’ll realize I’m protecting them too. Ordered 20 of the particle only P100 filters when this started instead of the harder to breath through Multigas cartridges I had. Much better for long duration wearing. My glasses fog, so I don’t like surgical type masks. MSA Comfo half face.
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That's a very good point that a respirator with an exhale valve only protects the wearer. I hadn't thought of that!