If you are still looking for something other than a gas duster to get rid of loose debris, do an Internet search for keyboard-cleaning supplies. If you pull the trigger on the duster when the can is upside down, the chemicals will spray out as a liquid - and it's never a good idea to get liquid in your computer. A gas duster is lower pressure and uses chemicals that won't damage your computer if you use the duster correctly. Air compressors, such as the one you might use to fill your car's tires, can damage the keyboard with too much pressure or with the chemicals often present in the air.
Though it's called "compressed air," don't substitute canned air with an air compressor. Repeat this process until you're satisfied your keyboard is free of loose debris.
KEYBOARD CLEANER SPRAY SERIES
After a series of short bursts, tap out any debris that doesn't readily fall out after you loosen it. Then, using the duster as directed, aim the straw sideways along the gutters and crevices of the keyboard. Before you use the gas duster, prop the keyboard up sideways on a steady surface so the debris will fall out. What about those stubborn crumbs that won't fall out or get stuck under the keys? This debris is still loose enough that a gas duster, popularly called " canned air," can help.
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