I have a vent towards the back of the lid that's covered with a fine chicken wire. I also have two large, dual pump, aquarium air pumps hooked to timers that run for 20-30 minutes every two hours, every day, all week to cycle air. I hope that it's enough....
It's pretty cold in my room, and 70 degrees in their vivarium. I mist it every day with treated water so that every thing is moist, and the humidity remains around 50%. I might open the front of the lid a bit to let more air flow out.
I went and bought a small "iced" touch light that gives off a soft glow- hoping to light up their vivarium a bit with it at night so I can watch em crawl around.