Sometimes the best location to wait out an emergency is in your home. You may not have much time to prepare for an emergency therefore it is critical that you have built your food and water supply, and that you have a stock of your daily necessities.
For extreme emergencies, it’s best that everyone in your household knows how to shut off the utilities. Shutting off your gas, water, and electricity will prevent gas explosions, water contamination, and electrical fires.
If for any reason you need to seal the air coming from outside, seal the gaps in windows, doors, and air vents with whatever you have on hand. For this reason, it’s good to keep duct tape and 2 to 4 millimeter plastic sheeting in your home, but what you have around the home will do.