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There are many options available for cleaning electronics.

Use a damp cloth to clean the screen of a computer monitor or television. As with all computer-cleaning situations, turn off the equipment first. Distilled water is good for dampening the cloth because it doesn’t contain small particles that can scratch the glass surfaces.

Commercial screen cleaners, which are available from office-supply or computer stores, also work. Some are specifically designed for laptop computer screens.

Anti-static cleaners offer protection against dust and can also be used to clean casings for computers, printers, fax machines, televisions, phones and video and audio equipment.

Compressed air dusters allow users dusting intricate areas such as computer keyboards, typewriters, telephones, photo equipment and delicate household items. Be careful when using them so the air doesn’t push the dirt further into the device.

A good way to clean out a keyboard is by turning the keyboard upside down and blasting a shot of compressed air between and under the keys. Another alternative for cleaning the keyboard is to use a mini-vacuum cleaner to pull the dust out.

Wipe the keys off with a damp clean cloth or use cotton swabs. Never spray liquid cleaner directly on the keyboard. If liquid or dirt gets under the keys, they will stick and will not be able to make contact, thus preventing the key from working.
If a key does get stuck, unplug the keyboard and pry off the key cap. Clean the key cap thoroughly, and spray the underneath area with a contact cleaner, a type of cleaning typically used to clean electrical contacts.

As for computers, even when you take care to keep the area clean, they will still collect dust, so every once in a while they need to be examined for possible cleaning. Look at the fan on the back of the case. A build-up of dust and lint on the fan is a sign that there’s also a build-up inside the computer.

To clean that out, first unplug the system, then carefully remove the case (you may need to unscrew it). Clean the dust out with a mini-vacuum cleaner or by carefully using a normal vacuum cleaner with a small nozzle attachment.