Is the any passive dosemeter or other symple device that can be used to sample breathing zones for welders? I have one guy who welds during at most 5% of his annual work load. Trying to figure out how to do some air sampling. I would like to get him out of having to wear the respirator if it is not really needed, or at least down grade to something less restrictive. I can't at present due to the unknown contaminant levels.
Anyway, Ideas for something other than having to hang a pump and do the calibrations and all the stuff that goes allong with that type of sampling process