I'm not gonna bother going thru the whole damn thread, but anyone who handles color chemistry without gloves and good ventilation is a fool. I know a couple of commercial lab owners who can't
even walk into their own building due to sensitization; and one needed multiple lung surgeries. It seems that "artistes" have the same mentality as chain smokers and think it's cool to take known
risks. I've sure seen my share of them ruin their health over the years. I've been very cautious, but
despite that, just from cumulative very small amts of exposure, now have to do my color processing outdoors. I load the drum in the dark, but the processor itself is on a movable cart which I push outside in suitable weather. There are reasons MSDS sheets exist.