We studied the computer cases we cleaned and noticed that most cases only had a PSU (power supply unit) fan, extracting air out of the case. This forced dirty air into the case through vents and other openings.

By adding a case fan to a computer this created a primary air intake, which controlled the air entering the case. All that was needed now was to design and create some sort of filter.

At this stage we searched for solutions, but found nothing that would substantially filter the air. We did find however, that dust is a major problem with many computer users.

We learnt that a common filter would greatly restrict the airflow and get dirty too quickly. So we created a 3 dimensional filter, which allows a greater airflow due to it's larger area.

Realising the value of these filters, we quickly started manufacturing them and installed them into our customers computers, with results that exceeded our expectations.