Wear a half-face respirator with an “Organic Vapor” cartridge + “P100” filter and you won’t have much to worry about.
It doesn’t solve all problems (like if there’s too much other stuff and not enough oxygen), but it handles almost any airborne harms that you’d expose yourself in a non-insane DIY situation.
well ventilated area and respirator will do you good,as well as common soap and water after.
oxy acetylene gas weldingisnot so bad for radiated energy, but you should protect yours eyes bare minimum.
if you are doing arc welding, mig or tig, cover up as much skin as possible and try to use some sort of barrier to occlude UV and highfrequency EM flux.
