Refrigerant gases are normally out of sight and out of mind, yet they are crucial for our comfort and economic performance. They are central to almost all refrigeration and air conditioning. But it is easy to overlook their importance and get lost in an alphabet soup of C’s, F’s and H’s.
Most believe the problem was fixed when we saw ‘CFC-free’ stickers appearing on our fridges in the mid 1990s as a result the Montreal Protocol. This is not the case. CFC refrigerants were largely replaced by hydrofluorocarbon (HFC) refrigerants.