When you guys use respirators, is that in addition to a spray booth? When I use 2k, I try to spray as close to the extraction fan as possible so that the overspray and fumes goes out the window. I also have a window fan running pretty much 24/7 to keep the room ventilated whether I'm painting or not. Its not 100% safe but I feel like the risk is reduced. What kind of set up is everyone using in addition to respirators?