Re:Cleaning My MacBook After 16800 Hours of Use
by Symbiote on Saturday June 20, 2020 @12:36PM
(#23584826)
Those "gas duster" cans don't contain compressed air. It's a mixture of volatile solvents.
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Re:Cleaning My MacBook After 16800 Hours of Use
by userbinator on Saturday June 20, 2020 @09:15PM
(#23588857)
They used to be a CFC like R12 before the ozone depletion was known, now they are a HFC like R134a or R152a.
...which also means they are a cheap source of refrigerant. Look up "charging A/C with gas duster" if you want to go down a rabbithole...
Re:Cleaning My MacBook After 16800 Hours of Use
by siberianbear on Saturday June 20, 2020 @08:55PM
(#23588758)
Yes, it's true. You can see this for yourself if you turn the can upside down while you press down the button on the top. Then, it will spray liquid solvent out, which will immediately vaporize, and therefore rapidly chill anything it's on.
In my former life debugging signal timing issues on circuit boards I used to use this trick (using those "gas duster" cans upside down) to chill individual components to try to find out where the problem was.