Ok, this may sound really dumb to y'all, but oh well, I'm going to ask anyway.
I've been doing some reading here and the same thing keeps popping up....very restricted ventilation for the sake of humidity in BP containers.
Now, just so you all know, I'm a tarantula person and just now only have 2 snakes (no BP's) that don't require very much humidity. Seeing as how I'm use to tarantulas and the fact that they require good ventilation to maintain good health and enviromental conditions, even high humidity species, it begs the question, how can a snake be put in a container with maybe 25% ventilation and not have health problems, molds or mites occur in the container?