How often is it appropriate to dust the laptop, and usually put it on the bedside table

Once a year is fine. It is recommended to dust every year when summer is approaching.

See if the top of your computer is often dusted.

Secondly, there is no frequent ventilation near the computer.

If not, divide it once every six months.

If there is a suggestion, change the environment or clean it yourself.

This is done once every 3 months.

If you usually use it more carefully and are not too dirty, it is recommended to clean it once every 1 year, and if you usually have a lot of ash, it is recommended to clean it once every six months. When cleaning the ash, put some oil on the shaft of the fan (it is recommended to use solid lubricating oil, try not to use liquid oil), wipe off the old silicone on the contact surface of the heat sink and the chip, and re-apply the heat dissipation grease (gray silicone grease is better than white heat dissipation).

It is recommended to do it once every six months in a place where the environment is not very good, generally once a year. You can estimate for yourself that it feels like the computer is a little hot when it is used normally, or there is no air at the air outlet, so you can almost clean the dust.

The computer is more dusty in the bedroom than in the study, office and other places, and I personally feel that it needs to be cleaned less than once a year. If you feel that the heat dissipation of the computer is obviously not as good as before, then you must clean it up immediately, and the poor heat dissipation will not only affect the experience, but also accelerate the aging of the internal parts of the computer