An update on woodsmoke- I got online to look into it some more. It looks like commercial activated carbon has to be made at high temperatures. They also inject steam which gives the carbon particle tons of pores, like a sponge. However,from what I could tell, anything that burns can be used as a source. Just a guess, but smoke from a wood fire would be unlikely to contain a lot of activated carbon due to the low temp of the fire, but it might have a little. I would still prefer it to using a carbon suit.