Thank you both for your responses!

I decided I'd do it this morning. I'm anticipating purchasing a new snake (from a breeder), which will be quarantined and treated just like my current snakes, but I'm just not sure when I will make the move to add to my collection. Not only that but I was in a pet store not long ago and there were mites on a few of their snakes (they're being treated, though! don't worry!)...I've been paranoid ever since, thinking maybe one or a few hitched a ride home with me. I haven't seen any, so I may just be freaking out, but I'm so anxiety-ridden, I can't stand it!

All enclosures are outside and it's been about an hour. I stuck my entire head in each one and they seem to have no fumes left in them. I touched the newspapers and they are dry, as far as I can tell, but I'm not quite done with other housework/animal work, so they'll be out there for a lot longer. Sometimes I feel like we have a zoo, here! But, it's a time-passer and I see nothing wrong with that.