So i think a small evaporative (swamp) cooler would be the best overall solution for me and my highlands this summer. *All the highland neps grow in my room, and my room often gets quite warm and dry in the summer (even in Boston) because of the sunlight through the windows. *Perhaps an evaporative cooler at one window will kill two birds with one stone: keep the air humid, and keep the room at a better temperature.
I've found several different models, but very little information about them, so i'm looking for some first-hand accounts of experiences with them. *There's this one, these, and one selling on Ebay a lot for <$100 by Integra (which i couldn't find online anywhere). *I'm curious what the pads in these are like, and if they function reasonably similar to a full-fledged evaporative cooling setup.