I Work In A Metal Fabrication Shop. I Am Not

I work in a metal fabrication shop. I am not a welder, I'm an electrician. About a week ago, the welder had to work with Flux core welds which produce a lot f smoke ( vaporized metal). They in their infinite stupidity forgot to turn on the ventilation system on.

Since then, I can smell smoke constantly. Even in my car and home. I don't smoke and would be considered in great shape as I frequent the gym often. Also, my chest is conjested. How do I get rid of e smoke smell in my nose?