Under EU legislation a total ban on the use of all R22 comes into force in 2015. In the meantime, only recycled R22 can be used in your existing R22 refrigerant air-conditioning systems.
As a result, demand for recycled R22 is increasing. The problem is that the industry only reclaims 10 to 15% of the amount of R22 required to maintain current systems. So while supplies are scarce, rising demand is boosting the price of reprocessed R22 gas, causing the cost of maintaining existing equipment to soar upwards.