painting Respirators (single stage Urethane-BCCC ) what are you using ?

I painted my 65 Barracuda in 1990 inside my then two car garage with the doors open and a fan going. Single stage urethane. And I survived. Twenty-four years later, my lungs are still OK. (Paint still looks good, too.)

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But I don't recommend doing that. The fumes can ruin your lungs. How quickly, don't know, and I have not painted a full car since, but I decided it was dumb to take a chance with not being able to breathe, so I bought a fresh air respirator to use for the smaller jobs I've done since, or painted outside. Or both.