making a humidor

[buzz]

Hello. My grampa has ben puffing since he was 17. In shop class he made a cigar box and I decided to finish it. I made it look fashionable, but how do I make it humid inside? What do I need?

You need to raise the vapor partial pressure of the air in relation to the saturation vapor partial pressure at the dry bulb temperature. Below is a chart that should help.