What Rebel 105 is trying to say is that CO2 is stored in the tank at sufficient pressure to undergo a phase change from gas to liquid. At high pressures, CO2 will form into a liquid form. As the CO2 is released through the gun, it will turn into a gas. This requires heat energy, which it gets from the heat in the walls of the tank and the heat in the body of the gun and so on. This will cause the gun to get cold, as heat energy is taken from those parts.
You can still get a puff of white condensation with HPA if the humidity is high enough. You don't get the same big plume of fog as you would with CO2. Who really cares, though?
Also, although CO2 is a greenhouse gas and all that, the amount of CO2 released by paintball players must be far less than the amount released by the makers of Coca Cola and anyone who burns anything. So if you want to stop CO2 release, in addition to using HPA, you should stop drinking carbonated beverages and stop lighting everything on fire, you damn pyromaniac. Kids these days, sheesh.
You can still get a puff of white condensation with HPA if the humidity is high enough. You don't get the same big plume of fog as you would with CO2. Who really cares, though?
Also, although CO2 is a greenhouse gas and all that, the amount of CO2 released by paintball players must be far less than the amount released by the makers of Coca Cola and anyone who burns anything. So if you want to stop CO2 release, in addition to using HPA, you should stop drinking carbonated beverages and stop lighting everything on fire, you damn pyromaniac. Kids these days, sheesh.
