How long do our Ac compressors last ?? Options

[Oreo20]

My 94 celica gt still has the original compressor and still blows ice cold air.

Question would be how do you take care of them and why do they stop working

I have an 09 Altima that the compressor just went out
I replaced it 20 days ago and it’s out again /:

[Bitter]

Your Altima, if the compressor failed in such a way that introduced debris into the system, will need the system flushed and the receiver dryer replaced, possibly even an inline filter installed. Compressors typically last a long time, but I've seen more late model cars with bad compressors, seems to be cheaper manufacturing in China and Mexico may be to blame or trying to run a higher cooling load on a smaller system, or both.