|
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.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
Last edited by oil pan 4; 08-31-2012 at 10:06 PM..
|