When designing the air pump, we are most concerned about reliability, ultimate pressure, pumping efficiency, vibration, noise, heat dissipation, intelligence, volume and other indicators. The final mass-produced air pump has an air output of 38L/min. It can inflate cars, SUVs, large off-road vehicles, RVs, etc. It supports inflating the air pressure of car tires to 75psi and inflating bicycles to 150psi. It can inflate most car tires from 0psi to regular 36psi within 3-8 minutes.