u/angstyauthorboi

In 2022 I hacksawed an asbestos containing brake pad of 50% chrysotile. It was in my high-school auto shop class and we had merv13 air filters at the time. We also opened the giant garage doors occasionally to bring in new cars, and to let in fresh air. The activity lasted 30 minutes at most, but I know it may have lingered in the air. I spent a total of 112 hours (at most) in the garage over 9 weeks.

What level of concern should I have over this incident?