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Old 08-31-2012, 06:53 PM   #18 (permalink)
oil pan 4
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CFCs were used in asthma inhalers up until a few years ago.
One of the good things about R-12 besides besides being very chemicly stable is its lack of toxicity.
Also R-12 inhalers were so generic they were almost all between $4 and $8, The R-12 replacement inhalers were $60+ when they came out.
If the let people with weak or messed up lungs or are alergic to everything breath in a little R-12 then it cant be that bad.

Now thats not the case with the replacement for R-134a. Its called HFO-1234yf and it is neither stabile or non-toxic. But it is very expensive as you can imagine.

As far as I can tell the only ones benefiting from the refrigerant change overs are the patent holders of the new refrigerant.
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Last edited by oil pan 4; 08-31-2012 at 09:06 PM..