Re: Air Con Gassing Killing me!
The AC evaporator will be inside the heater unit, so if you think it is leaking into the car, then it is possibly the evaporator, or maybe one of the pipes that connect to it that is leaking. Having said that, evaporators rarely leak and it is more likely to be the condenser or pump that is causing the problem. As the others have said, R134a is not a poisonous gas, but it does need to be treated with respect. If it leaks directly on to your skin it could cause frostbite and if you get it in your eyes, it could blind you.
Unless you know what you are doing, it is best left to the experts.