If you are asked to stay put

Right in the building where you are:

• Follow the authorities' instructions.
• Shut the doors and windows.
• Watch for the news on the radio, TV or Internet. Follow the instructions you are given.

If the situation calls for it:

• Seal doors and windows with plasticized adhesive tape or damp rags.
• Shut off every system with an air intake from the outside (air exchanger, air conditioner, thermal pump, range hood, dryer, etc.).
• Block the air intakes of those systems with rags or damp cloths to prevent any toxic gas from penetrating your home.

Source: ministère de la Sécurité publique du Québec