Imagine that one day you come home from school and are about to open the kitchen door

Well, upstairs isn't on fire yet.

First, don't make a phone call, and second, don't turn off the gas stove immediately.

First, open the windows immediately to ventilate, and second, try to get out of the house as much as possible.

There are rats!!

There was blood all over the ground, but there was no one!

My mother fainted from gas poisoning.

Don'ts: Close doors and windows; Put out the fire.

What to do: Don't panic, first close the main valve of the gas (when you see that the valve of the cylinder has caught fire, you should close the valve urgently [you must wear cloth gloves that have been wet in water during the process of closing the angle valve]); After closing the gas valve, cover your nose and mouth with a wet towel, open the doors and windows, and run to a place with fresh air (the valve must be closed quickly).

Close the valve, open the window, open the exhaust fan, and ignite.

Can you ask about the smell of gas, it's not CO, it's colorless and odorless.