When the tyre pressure of a car is under pressure, the driving of the car will be affected, and there will be safety risks. Therefore, if the tyre pressure alarm system issues an alarm, it is recommended to inflate the tyre pressure in time. Usually, most car owners will have one in the car. Tire inflation pump for emergency needs.

Before answering this question, let's take a look at what are the considerations for purchasing an air pump? The first thing is to be able to see the real-time air pressure of the tire. Usually, the air pump will have a barometer. The products on the market mainly include the pointer type and the digital display. For most users, the digital display reading method will be even better. convenient.

Secondly, it is necessary to consider whether the target air pressure can be set, and it will stop automatically when the target air pressure is reached. This is very important. The tire pressure should not be too high or too low. The automatic charging and stopping car inflator can ensure that the tire pressure is the most suitable after inflation. , And then, you must also consider whether it has a cord. The air pump without cord is powered by a built-in battery. It is more convenient to use without cords, but when the battery is always used up, it must be charged after it is used up before it can be used. It is worth mentioning that some low-cost air pumps currently on the market do not add a protection circuit in order to save costs. This kind of air pump has a great safety hazard in use.

Finally, another factor that can be considered is the additional function of the air pump. Many air pumps on the market have the function of LED lighting. It is more convenient for the air pump at night. In addition, some air pumps can also act as mobile power sources. When the phone is almost out of power, it is good to charge it in an emergency.