A lot of people say that plactic sheeting a room will kill you in a gas attack. Well the answer is yes and no. The premis behind the idea is a temporary shelter is youi get a warning. Works in a place like Israel where they have a warning system in place. This syatem also gives all clear signals for you to come out. The average sized room even if totally sealed will give you several hours worth of air.

The idea is that most gas attacks will disipate in a relitively short time.

When you start running out of air you get out and rake your chancees that the gas will be below tovic levels by then. One major warning.

[color:"red"] DO NOT SLEEP IN a sealed room [/color]

Or as air runs out you may continue yor sleep into eternaty. Stay awake and be alert to the signs of running out of air.

The sealed rooms are a useful idea under the right conditions but must be used the way it is intended. It is misuse that will be leathal.