Occupational Health/Safety Training

A notable instance of OSHA requiring training are the rules and protocols under 29 CFR 1910.134. However, the implementation of of this rule varies dramatically. In fact, one 1985 paper pointed out that 9% of programs surveyed didn't even properly check for the use of NIOSH-approved respirators!

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To truly evaluate the quality of 29 CFR 1910.134 programs would require a randomized control trial. However, notice that it is 29 CFR 1910.134 trial, not an N95 trial.

In the same way an RCT giving books to uninformed students, or life jackets who won't wear them will not produce any meaningful results, giving people respirators with no explanation won't either. One might as well not have a respirator program at all, given the results above.

Some RCTs that are called N95 RCTs are actually 1910.134 RCTs, like this one. One of the tell-tale signs is that the RCT excludes people with beards, people who, under 29 CFR 1910.134, are not allowed to wear negative-pressure respirators.

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