It is quite easy to clean a flat screen monitor, but it is also easy to scratch or damage the screen with the wrong supplies or incorrect methods.
The first thing to do would be to turn off the monitor. When it is dark, you will be able to see dust and dirt more readily. Also, when the unit is on, static electricity will keep dust on the screen.
The best thing to use for the screen would be a clean and soft, lint-free cloth. Anything else will potentially scratch the monitor. Paper towels should be avoided.
There are several options when it comes to cleaning products. If purchasing a product, it is best to get one that is specifically designed for cleaning electronics and monitors. A household cleaner can also be made with vinegar and water. Combining equal parts or vinegar and water will make a good cleaner.
When using the cleaner, this should be applied to the cloth and then used to clean the screen. No liquid should ever be sprayed directly onto any electronics. This has the potential for getting into the sensitive areas of the equipment.
It is usually best to gently wipe the screen in a circular motion. If the monitor is extremely dirty, it might be necessary to use more than one cloth. If there is a particularly dirty area, it is important to not push hard on the screen. This can damage the pixels in the monitor.
A computer screen is easy to clean with the right products and correct method. Doing this on a regular basis will keep it looking great.