The air pump is a car electrical product and cannot be cheap, so you must choose a good quality air pump. Otherwise, it will not only be unusable but also have an impact on the car's circuit system. Car tire air pumps are not used frequently, so The system has high requirements for anti-rust of the product to prevent it from being unable to start during use. As for the brand, I suggest you go to the Top Ten Brands website to check the ranking of portable car air pump brands. There is a detailed introduction above, I hope it can help you.