Not wearing a mask, havnt found one to work well with glasses, helmet and beard. I did have a box fan blowing to try and help. Garage door and windows open. Didn't seem bad at all, but something is still getting me. No work on it yesterday at all, but still a headache. I did get the pex run and an outside faucet finally. I will be able to wash the car now without 10000000 buckets.