Humidity & Godawful Tarp Booth

I got my Teleclone sanded up, I found an amazing deal on an air dryer on Ebay, I have paint guns on the way, and I even went nuts and picked up an airbrush. So I should be about ready to apply shellac, a burst, and nitro. But I'm not. I just started reading about humidity and booths and so on.

I'm worried that I won't have any place to spray this thing. The posts I saw said you need humidity below 50%, which I may or may not see again this winter here in Miami. I have an air conditioner in my garage, and I think I can get the humidity down, but I'd be in an enclosed space, so I would have to construct some kind of godawful tarp booth with a fan, which would suck humidity back in.

Am I totally screwed or what?

I have a great Taunton video on spraying. The guy in the video uses his garage. He created a temporary cardboard booth that has three sides and a roof, and the exhaust is an ordinary fan with air conditioning filter stuff on it.

I'm wondering if I can fake up something like this. I could get some PVC pipes and couplers and make a frame that breaks down fast. I already have a couple from a tomato-support project that failed. I could stand it in my garage door and tape plastic sheets on it to form walls, and I could make a hole for a box fan. But I'm still worried about the humidity.

Spray a test piece and if you get any blushing ad some blush eraser to your nitro. I usually add a little anyway, helps get a smoother finish.

Last night an idea came to me. I can lower the garage door halfway and put a Workmate under it. On top I can throw together a box around 2.5' on a side, with a box fan on the outside wall. I can close up the door opening with plastic and Velcro.

I figure Bernouilli's Principle will come into play. When the fan is on, the pressure inside the box will be a lot lower than the pressure in the garage, and the air movement will be faster. It should suck the air out pretty good. And now that I know about retarders, I think I can survive the humidity.

I have to marvel at the guys who say you should paint early in the day, before turning on any motors and disturbing dust. I wonder where they got their motorless compressors.