Dust all around us.

Dust is all around us, indeed, but some places and/or things collect much more than others.

Air filters on an air conditioner, cooling fins on a refrigerator, a fan blade... anything that has a fan pushing or pulling air through will inevitably collect more as the airflow is increased. 

Your computer is no exception.

As the number one enemy on a computer device is heat, there are severe repercussions that arise from such dust accumulations:

• Blocks the air flow inside the computer, effectively preventing heat from being transfered to the outside of the case thus creating overheating problems, and eventually processor failure.
  
• Makes fan blades heavier, noisier and prone to breaking down.
• Can create shorts on board circuits.
• Can be a nest for nasty pests.
• And more...

None of which you would like to (nor should) have in your system.

As a preventive maintenance procedure, whenever you see a little dust accumulated on the vents on your computer, you can use a vacuum to suction that dust out.

If you decide you want to clean the interior as well, please note that:

1. Opening the case might void your warranty.
2. Electrostatic Electricity created by the airflow on the vacuum plastic can damage the components inside your computer.
3. Touching any component inside without following proper ESD guidelines can cause component failures.

Alternatively, you can also use a pressurized air can, but then again, certain precautions should be used, least component damage might occur.

1. Do not tilt the bottle, least the liquid might come out and short the components inside.
2. Make sure the computer is off, and let it cool down before cleaning it. Blowing cold air from a pressurized container into hot components can cause serious problems to them.

If you're unsure or don't know exactly how to safely perform this task, please contact a professional technician that can do the job safely and efficiently.