I thought someone had stolen my spray mask a few months ago so I needed another in a pinch. No stores had them and even Amazon wasn't selling them, but you can get them on ebay called a half face mask and they're quite effective. I like the older style by Bellcamp (much better fit and more comfortable), but I can't find them anymore so I use the 3M type .
All day long on ebay for around $25, a rip off, but they beat anything lesser .
Don't trust your lungs and overall health to just any old cheap mask. I've had serious exposure to some really nasty chemicals over the years and don't take chances anymore. Invest in a decent mask. And for a lot of painting, etc., keep in a large ziplock bag to keep the filtration parts from drying out. For the occasional small job it's not as important, but if you're going to spend an hour or more at a time behind the mask keep it in a baggie..and don't trust the Chinese made junk masks. They might be
ok and they might not be
ok..bottom line, do you want to trust the Chinese Communist party with your health over a buck or two ?
And John, no way am I going to trust my health to a paper mask even if it says charcoal somewhere on it. No offense intended, but I did this stuff for a living for quite some time. Even my corporate bosses didn't care if I lived or died, but I did and still do. Oil based paints and stains still contain some rather nasty crap in them regardless of what the label might say. But hey, your health, not mine. I want to keep my liver functional as long as possible.