1 Oct 2007
TWENTY-ODD years ago we never worried too much about refrigerants. Like fuel in a motor car, providing you put the right stuff in and it wasn’t horribly contaminated, your vehicle would run quite happily – at least until some crucial component expired. Then came the ozone layer and, later, global warming and suddenly the humble gas that is the lifeblood of all air conditioning and refrigeration was at the forefront of the environmental debate.