Computer Dust Problems

Dust is by far the main cause of PC and other electronic hardware malfunctions and failures. In fact, it’s proved to cause more than 70% of all hardware performance issues -  directly or indirectly. Why does this happen?

Most computers are designed to use a combination of vents and cooling fans to keep the internal components operating at a safe temperature. While dust on the outside of your computer case can’t cause much damage, when dust is drawn into the vents they can begin to clog.

When the vents clog, the fans must work harder to keep a safe temperature. Additionally, dust that settles on the inside of your computer has insulating properties that block proper airflow. Like any mechanical part, the harder those internal cooling fans work, the faster they will break. If the fans can’t maintain a safe temperature, other parts of your computer like the memory, processor or power supply can overheat and stop working correctly.

Processor throttling slows down a computer (more specifically, its processor) to use less power and avoid overheating. Therefore, due to dust building up around the processor, the airflow within the cabinet is hampered and the parts become hotter than usual. If throttling doesn’t help drop the temperature, various components shut themselves down to avoid getting fried due to excessive heat.

overheated computer
The heat that components produce in the computing process needs to be dissipated for these parts to operate at its best. Most of the systems use a combination of heat sinks and air to do this.

How Do Heat Sinks Work In Your Computer?

Heat sinks were designed to drain the heat away from its source and transfer it to the moving air that will dissipate it further. Fans draw air into the computer case to do this.  This air may contain everything from dust, smoke, dirt and even small insects.

All of this stuff gets drawn into the case, and although some of it may escape through exhaust fans, the biggest of these particles will gradually build up on the inside of the case and between all the components. As dust accumulates in the nooks and crannies of your computer, normal airflow will be obstructed and finer particles will be trapped.

Components and parts that provide and assist with the cooling function, are the worst affected. This includes fans, heat sinks, air-fins, ducting and radiators.


Unless your computer is in a dust proof room, the buildup of dust and dirt cannot be prevented. Air will continuously be drawn towards and through your PC by the cooling fans. Heat will slowly build up in components and inside the case - and because computers are running for much longer periods of time now, when compared to the past, the problem is multiplied.

The affect that this has on the operation of the computer is dramatic. The user may notice that the computer becomes sluggish or freeze more often. Fans may start to become noisy and if left, may eventually grind to a halt, leaving the machine with no cooling at all!  his leads to frustration and needless repair bills.

The easiest way to stop the continuous buildup of dust and to keep your computer working at its peak, is by keeping the dust out in the first place . The easiest way of doing this is by fitting computer dust filters to the outside of your computer case.

You won’t need any tools, screws, glue or even special skills to do this as the dust filters fit to the outside of your computer case, by a built-in magnetic frame that will keep the filter securely in place.

Filters will stop dust from entering the case without affecting the airflow adversely, so heat can dissipate freely from clean components and allow your system to perform at its best all the time.