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rmoliv

macrumors 68000
Original poster
Dec 20, 2017
1,572
3,117
I've just noticed this sort of layer of humidity on my iMac display. I clean it with a cloth but in less than an hour or so it reappears. My house is humid in winter, maybe that's just water vapor condensing on the screen? Is there any definitive solution to this that you know of?

As a sidenote, I've found two small and barely visible scratches on the display. I've never touched it with my hands just with the cloth when cleaning, are scratches common and inevitable on iMac displays? It's only 1-month old. Sorry it's my first Mac hence these questions.
 

294307

Cancelled
Mar 19, 2009
567
315
My iMac is about six months old and the display has some small scratches which are visible when the display is turned off, but I know that's from cleaning the display with a clean reasonably soft cloth I had lying around. Anything you own will eventually have this kind of "wear and tear" - it's pointless trying your damn hardest to avoid it. You probably did cause the scratch from the cloth you used to clean the display - as I have with mine.

Use a soft lint-free cloth when cleaning off fingerprints from the display, or slightly moistened with water when you need to remove debris. Basically, use common sense and apply reasonable care.

You know, I am super careful with my iMac but I still managed to cause a small chip in the bottom-left corner of the chassis after having the iMac in my car several times when I've needed to travel.

Regarding the condensation on your iMac display, it's probably just temporary. It could be caused by the temperature difference between the room the iMac is being used in and the heat being generated by the components in the iMac, particularly if the room is quite cold.
 
Last edited:

BrianBaughn

macrumors G3
Feb 13, 2011
9,821
2,493
Baltimore, Maryland
If the iMac is warmer than the room it would be just about the last place water vapor would condense.

If there's that much humidity in your house and if you ever shut the iMac down then it's possible that some condensation could be happening internally on the iMac...which would be bad. Condensation externally couldn't be defined as "good" either.
 

Shivetya

macrumors 68000
Jan 16, 2008
1,669
306
get some good meters to determine the humidity level of your house, condensing on displays is way too high. I use a pair of thermopro TP50 meters I got off Amazon, they are cheap. 45-55 is a good range for health but if you get too high you can grow stuff you don't want and damage stuff
 
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