But anyhow I will improove my protection since I plan to go ahead with building and I don't want die trying to![]()
Well, you aren't going to die instantly. You'll only suffer nerve damage, maybe get cancer or lose a few senses, that kind of stuff. Nothing immediately life-threatening
Edit: Forgot to actually write down most of my answer...
About the gloves: I know for sure that epoxy contains substances that (unlike most of the liquid) will penetrate thin gloves in a matter of minutes. I don't know about polyester resin, because the gloves are something that I took a little lightly, too. At first, anyways. As I said, some materials are very sensitive to solvents. Nitrile will swell after a while, for example, and become very weak penetrable in the process.
And about the two open doors: Some airflow would change the situation, of course. If the room were completely closed, the fume concentration would continuously increase - to the point where certain filters aren't sufficient any more or your eyes start burning.