Pat, I must have been a coma to not see that post. Is it still 1988?
That'* what a ventilation fan is for, Bill. I figure 1 1/2" to 2" ridgid foam insulation panels to form 4 sides and a roof, plenty of those $5 shop light fixtures, a couple furnace filters and a big fan. Oh, we can't forget beer either. It can me made modular so all of the panels can be stacked neatly when not in use (in a self storage unit, not in your garage of course). We can even add an air coupling to one of the panels for the supply.
I think I have an overactive imagination.