The fan in your computer that draws in air to cool the components may become clogged with dust, pet hair, and other forms of dirt. This can cause your system to overheat and run sluggishly and maybe even eventually break down.
Depending on your environment, you may need to clean your computer more often (or less often) than others. Computer placement is important to consider; keeping your computer on the floor allows for dust, hair, skin cells, and carpet particles to get inside easier.
If you smoke near your computer, cigarette ash and chemicals can build up inside your computer’s fans and other places.
If you’re a pet owner, there is no denying the presence of shedded fur from your pet that gets on your floor. The inside of your computer is just as susceptible to fur clogging fans and other areas of your computer.
Clearing your computer of this dust and debris every 3 to 6 months can increase your computer’s performance.