@DMA Chemicals can be scary, but what you need to know is simply their hazards. Most are well known, SDS sheets are an example of this. "What does this chemical do when exposed to air, lit on fire, put in water" etc.

Just figure out what they use and you can figure out what is needed to safely work around them.

OSHA for better or worse pretty much mandates rules that do this, so if it isn't followed you can bring in an inspector and .. the rules will be followed.