Welcome to Usenet, Fleemo!

Thanks Dude, I appreciate the welcome.

Minus the 'tude, he is about right. I haven't seen or heard anything
about
using a respirator to cut foam. Of course, they used to not worry
about
asbestos either. If you are worried, use a respirator. You might as
well
own a good one if you are going to be serious about building planes.

I realize polysterene smoke is probably not something you want to
breathe in like the bouquet of a fine wine, but I was looking for input
on specifically how toxic it is and what steps need to be taken when
carving foam with a hot wire. Is working in a well-ventilated room
enough of a safety precaution, or is a respirator required?

Where can I find a hot wire cutting tool?

Jean-Paul, check out http://www.HotWireFoamFactory.com

-Fleemo