(3.8 hours) Sealed paint booth and exhaust duct. Unpacked, installed and tested HobbyAir fresh-air respirator system in paint booth.
I suspect that last night's episode with the paint booth, in which I felt terrible all night due to apparently ingesting fumes spreading from the paint booth throughout the hangar, may have been caused by unavoidable leaks in the paint booth, and more importantly, the fact that the fan was pressurizing the booth and causing a lot of fumes to escape into the hangar. Now that I have a fresh air breathing system and a Tyvek suit, I plan to try painting in the booth with the fan turned OFF and the fan inlet taped over. I'm hoping the paint spray will stay in the booth better this way, so I can work in the hangar after priming/painting without ill effects.