Help-A-Noob :)

[The Serpent Merchant]

You spray the snake's enclosure, not the entire room (unless you have a God-awful infestation, I guess). I think once it's dry and you can no longer smell fumes, you should be good, but I always treat tubs outside so I've never had to figure that one out.

I'm pretty sure if you sprayed the whole room you would die along with the mites. That stuff is nasty.

It does have through instructions on the can