What methods can be used to increase the pressure of existing cylinders?

I don't know whether to increase the pressure of the gas storage tank. A booster valve can be used. If you want to increase the pressure from the air source, that is, the pressure of the air compressor, you can adjust the pressure regulating valve on the dryer on the car, and the pressure of the whole system will be high. If you just want to increase the pressure of a certain gas storage tank, you can use a booster valve, but the booster valve is more expensive, so it is better to increase the pressure as a whole.