I would get something to measure the humidity, to see what it runs, before I bought any more equipment.

I would try to keep it from 25% to 55%. Anything above 55%, I don't like; but I have always lived in low humidity areas.

When no one is in the room, them humidity probably doesn't need to be controlled more than 15% to 75%.

But when people get in there, their respiration is filled with water, so the humidity in a small space is going to climb, if it's a closed space. So that's why I'd shoot for something like 40% max before people get in there and start playing.

The only issue with low humidity is if you are going to work on the boards. Anything less that 35% you should take more electrostatic precautions.

Robert

Optimum level is probably 40 - 50%. Higher levels are OK, when you aren't in the room as long as it's non-condensing.

The issue with higher humidity and damage to machines is that with large temperature swings, you can get condensing (liquid water) on the surfaces.

Robert