With the invention of rechargeable air can duster, cleaning electronics or vehicle parts it is easier.Removing dust is done by pointing a jet of air, that is moving very fast.. Along with being a real solution it has few advantages that makes it unique. Getting dust out of hard to access places is so easy for this product as it uses compressed air to do his job. Either because of their nature with hard to reach surfaces (ex.: keyboards), or because of their delicate nature (think of PC parts). 

Application of compressed air tools are unlimited. Let me give you some examples. From power drilling machineries, mining, to soft industries like health application. Getting back to the common user, this tool is most used for car parts and PC components. The air blown must be without any trace of water vapors and sand particles. Having water in it, will damage the electric system as it is conductive. Particles or sand particles will cut through the object we want to clean. This principle is used by heavy cutting machines. But for our use we want just air. 

If you consider using one, I suggest you use a cheap compressed air duster. Avoid the classic compressed air can duster, as this most to often contain water vapor. You don't want to damage your hundreds, thousands dollars electronics, because you though you can save few buck.  Plus it is Ozone friendly. For PC cleaning arm yourself with some cotton swabs. They will help you remove dirt as well and they can also help to immobilize fan blades. Stop the PC alimentation while doing this operation. If you never done this before, avoid touching inside components. Touching can damage them. Take the rechargeable air can duster and blow on your components. Immobilize the fan blades while you blow out air inside your PC. Microsoft recommends that you do this procedure at 3 months and keyboard cleaning each month. 

You may ask where to get a cheap compressed air can. I took the best one, although initialy it costed me a few extra buck, but know I don't have to refill. Avoid the spray cans, as we talked these can blow water vapors that will damage electronics. See if the air flow can be pointed as you want it. And if you want to take care of the environment make sure you use one that is ozone friendly.