I'm putting my hydro set up in part of my garage. I have everything I'm going to need on order or in process of being made. My last major project is my painting / clear area. I have a corner in shop that I can use. That way I basically have 2 walls already there if I go with a custom build. I don't want a huge investment at this point with the learning curve and small projects but want to live a long time without lung problems. Lol I'm using paint from OHW, so Fumes will be a factor I assume since they are solvents. So, few questions. Can I get by with plastic walls, explosion proof exhaust fans...... Or will the open booths work too? About the cheapest I've found is on a site called EPTEX. About the largest I can go is about an 8x8 area. Also, will air blowing to the outdoors be clean air? I don't want the outside of my building to turn a million different colors.