As the weather warms up and temperatures rise, fire departments from the United States have issued a special warning: don't leave hand sanitizer in your car!

Affected by the pandemic, many people will take hand sanitizer when they go out for their own health, but don't forget, generally not only washing your hands free fluid containing ethanol (alcohol), and its convenience for sterilization and reduce the sticky feeling volatile, these free hand wash liquid ethanol content is more than content of the other hand, and ethanol belongs to flammable material, when summer, the car through the direct sunlight, temperature rise sharply, when up to a certain concentration and flash point, it is possible to spontaneous combustion, and even explosion. Therefore, most bottles of hand sanitizer are also printed with the words "avoid direct sunlight and keep away from open flames".

According to CBS, there have been incidents in which a bottle of hand sanitizer caught fire in a vehicle with temperatures reaching 95 degrees Fahrenheit, causing serious damage to the side door.

"It's flammable," said Sherrie Wilson, a retired Dallas firefighter. When the liquid evaporates in a small space, such as in a car, the flammable material turns to steam, creating a flammable environment in an overheated car, which could explode if someone happens to be wearing or taking off a sweater or jacket or something similar that generates static electricity or other visible flames, he said.

How to properly and safely use and store hand sanitizers?

1. Use a reliable container that can be sealed. It is strictly prohibited to leave the container open without cover.

2, When using alcohol hand sanitizer, be sure to maintain indoor ventilation.

3, Ensure that there is no fire around before use , no flammable substances.

4. Try not to use 84 disinfectant and high concentration alcohol in a confined space.

5. The upper cover of the container must be closed immediately after use, and it is strictly prohibited to place it open.