Trip Jennings shot by federal officers at the Portland protests
A PSA for any one that has one of those gas masks, either the US M17 or Czech M10.
I had one packed away and got it out when the pandemic hit in case it turned out it would be useful. After some research I discovered the filters contain hexavalent chromium (used to neutralize chemical agents) and should not be used if you can see black dust coming out of the filters (the chromium treated charcoal). Ideally the old filters should not be used at all, but if its an emergency or disaster situation you can use your own judgement.
Also the old soviet gas mask filters shouldn’t be used either, pretty much all of them contain asbestos filter media.