Thank you, you’re absolutely right. For $57 just to be safe for an escape window ladder, it’s totally worth it. I do not have children atm, but I cannot describe how much I love my dog, the best in the world IMO, basically a child to me. Worst case scenario, I would ideally be able to shove him in a duffle bag and carry him down with me, he’s only about 50 lbs but who knows, if there’s a raging fire middle of the night, he may cooperate more than I can anticipate. I’d be failing myself, my g/f and my dog if I didn’t at least have one of those laying around near a bedroom window. As far as the mask inquiry goes, sorry I know a bit about using masks to prevent inhaling particles from work, but I do not have a clue in regards to chemicals.