[Dengar01]

Am I glad I bought those potassium iodine pills. While platic may not protect me from radiation particles KI3 definetly will. But if I put plastic on my windows in the basement along with closing vents ect. wouldn't that prevent poison gas from entering the room I'm in?

[Democratic_Machiavelli]

I really don't know. It's not my field of expertise. I would assume it depends on how well the vents are sealed and how long you could last in a situation with absolutely no air flow as you waited for the chemicals to dissipate.

I wonder if those underground bunkers they used to sell in the fifties have been modified for chemical and biological attacks? Or were they an entirely closed system already?