This was recently touched on here: http://ball-pythons.net/forums/showt...t=exterminator
I had to bug bomb my apartment like 10 years ago and what I did was put trash bags over ever enclosure and taped the bottom closed while I was at work. Came home and aired everything out and all seemed well. Have not had any ill effects from that one time. Although it may be a lesson in what NOT TO DO. Others may be able to chime in and correct me on that(please do). I will say I it was a combination of possible stupidity and laziness of finding someone to foster my reptiles for a day or so.