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Amanda Foster — Reviewed writer, former magazine editor
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How to Handle Survive a Gas Attack Step by Step

When survive a gas attack leaves you confused, worried, or unsure what it means, a clear step-by-step approach can help you sort the signal from the stress. This guide explains how to understand the situation, reflect on what matters, choose a practical next step, and know when to ask for trusted support.

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1

React right away if you smell or see toxic gases.

React right away if you smell or see toxic gases.
An unusual smell may be one of the only warning signs that you are being exposed to a gas attack. Although not all toxic gases have a unique scent, many do. Look for a discolored cloud in the air. This cloud might dissipate quickly or appear to linger in the air.
  • An unusual smell may be one of the only warning signs that you are being exposed to a gas attack.
  • Although not all toxic gases have a unique scent, many do.
  • Look for a discolored cloud in the air.
  • This cloud might dissipate quickly or appear to linger in the air.
  • An unusual smell may be one of the only warning signs that you are being exposed to a gas attack.
2

Exit the building if you detect gas inside.

Exit the building if you detect gas inside.
If you smell or see gas in the air, leave the building space as quickly as possible. Your goal should be to get to fresh air because staying inside will only expose you to a concentrated amount of the gas. If necessary, climb out of a nearby window and stay outside until help arrives.
  • If you smell or see gas in the air, leave the building space as quickly as possible.
  • Your goal should be to get to fresh air because staying inside will only expose you to a concentrated amount of the gas.
  • If necessary, climb out of a nearby window and stay outside until help arrives.
  • If you smell or see gas in the air, leave the building space as quickly as possible.
  • Your goal should be to get to fresh air because staying inside will only expose you to a concentrated amount of the gas.
3

Seek shelter indoors if you see signs of gas outside.

Seek shelter indoors if you see signs of gas outside.
Bring any pets or family members inside as well. If you see neighbors or other people outside, yell for them to seek shelter immediately. Do not try to outrun a cloud of gas in your car or on foot, as you could get overtaken with no shelter options.
  • Bring any pets or family members inside as well.
  • If you see neighbors or other people outside, yell for them to seek shelter immediately.
  • Do not try to outrun a cloud of gas in your car or on foot, as you could get overtaken with no shelter options.
  • Bring any pets or family members inside as well.
  • If you see neighbors or other people outside, yell for them to seek shelter immediately.
4

Cut your indoor space off from outside exposure.

Cut your indoor space off from outside exposure.
Close any doors or windows. Close all air vents and shut off your air conditioning or heating units. Shut any fireplace dampers or any other open spaces that lead to the outside.
  • Close any doors or windows.
  • Close all air vents and shut off your air conditioning or heating units.
  • Shut any fireplace dampers or any other open spaces that lead to the outside.
  • Close any doors or windows.
  • Close all air vents and shut off your air conditioning or heating units.
5

Go to the most isolated room indoors.

Go to the most isolated room indoors.
Once you are inside, make your way to the smallest room with the fewest windows or least access outdoors. Use spare fabric, plastic, or any other available material to block off the edges of the doorframe, especially concentrating on the gap at the bottom.
  • Once you are inside, make your way to the smallest room with the fewest windows or least access outdoors.
  • Use spare fabric, plastic, or any other available material to block off the edges of the doorframe, especially concentrating on the gap at the bottom.
  • Once you are inside, make your way to the smallest room with the fewest windows or least access outdoors.
  • Use spare fabric, plastic, or any other available material to block off the edges of the doorframe, especially concentrating on the gap at the bottom.
  • Once you are inside, make your way to the smallest room with the fewest windows or least access outdoors.

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