Hmm. Discharge high, absorb low, is what I was taught. This may simply be due to convenience rather than science, though. I guess I could dig out a textbook ...

I'm not disagreeing with the density calculation - but I am guessing (GUESSING) that differences in temperature trump humidity. Temp is not constant, which causes air currents which move the humidity around. Then you realize air is not an ideal gas; it is a mixture, but the equation is meant for ideal gases, and eventually you realize that you need a cigar

A desktop oscillating fan in that room would probably have a big effect on RH distribution.

I'll try to remember to ask a friend of mine (who should know the answer) about this the next time I see him. Unfortunately, we just had lunch yesterday, so I probably won't see him again until July.

The room is looking better and better! I'd consider a smaller cigar cutter, though.