 We push it through the compressor, compress it, and put it in the condenser. And under pressure, the condenser will let the heat escape to the outside, and it turns it back to liquid again. So we take liquid refrigerant, put it in the car, let it turn to a gas to absorb heat. We compress it, put it out front through the condenser, force the heat out of it, and turn it back into liquid. That's how your air conditioner system works. It literally changes the refrigerant from a liquid state to a gas state.