Powerful and Fast the AstroAI 12 Volt Portable Air Compressor Pump makes filling tires extremely easy and fast. Fill a tire to specification twice as quickly or even faster by using fewer instruments. Save time and just fill it right the first time. High Quality Construction Only high quality materials were sourced for this tire inflator as it can pump up your car's tires with 35 L/Min. Keep in mind a normal car will only need about 30 PSI to operate safely. The rubber hose is insulated and extra thick for superior performance.