All good suggestions above. Here's Apple's official cleaning instructions. I use iKlear on my devices.My monitor screen is dirty. How do I clean the screen?
With a slightly damp microfiber cloth(regular water) and then wipe over with a dry microfiber cloth. Works better than any screen cleaning product you can buy.
That might take an appointment at an authorized service provider.How to clean the glass with yellowish nicotine stains inside?
(the previous user was a heavy smoker, and the iMac sucked it too.)
How to clean the glass with yellowish nicotine stains inside?
(the previous user was a heavy smoker, and the iMac sucked it too.)
You can't clean that glass unfortunately without taking it apart.
If I remember correctly vinegar and/or ammonia are the two go-to solutions for nicotine-stained glass.
See here: https://homeguides.sfgate.com/clean-cigarette-smoke-windows-93180.html
Use at our own risk! Not sure what vinegar and/or ammonia will do to a potential coating of the display glass.