Computer Cleaning, Office Hygiene and Computer Dust Filters by Durban, South African based company. Ulwazi Knowledge Link IT has a patent on an ultra high vacuum coating we use to make our filters ultra-efficient. Filters are also used in Programmable Logic Controller cabinets, PLC and air conditioners. Filters are custom made for customers needs. We makes Computer IP55 rated dust cabinets with filtration by our Dustex® filters. Cabinets are custom made. Ulwazi also stocks a wide range of computer cleaning products. Research has shown that 95% of computer failure is due to dust buildup on electronic computer boards. Dustex filtration solves this problem. In extending the lifespan of electronic equipment, especially computers Ulwazi is indirectly helping save the planet and the limited resources available.