system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can a refrigerator from 1943 still function perfectly but cars need their air conditioning recharged after only a few years?

I always assumed they were both simply heat pumps, so why does one run out of juice so fast?
gpt
Automotive refrigeration uses many rubber seals and gaskets. Whereas domestic refrigeration is all copper or aluminum with brazed connections. There are no rubber gaskets or seals. It’s a hermetically sealed system.