I've recently landed in a nice fabrication position on structural I-beams and the like, but the company does not like opening the bay doors for any reason when it's cooler than 75.

What should I do about the horribly hazy conditions if there is little to no fume ventilation, and have been told I cannot wear my own respirator? I've only been here for 5 weeks and I can tell my breathing is more labored than a month ago. I'd love a PAPR, but those are out of reach right now as I get started...

What kind of clothing do yall wear in layers to manage being cold as hell with no heat for 9+ hours?

In general, management strategies for all things giant-shop-in-winter are needed.

Thanks for your time <3