Everybody knows that the basic reason for computer damage is a lot of dust in the cooling system. Dust gathers inside the computer preventing the cooling process. As a result, incorrect cooling leads to 1) the increase of circling and fan noise, 2) the shutdown of the computer because of overheat protection, 3) the swell of condensers on the video card, motherboard and power adapter, and 4) short circuit and static discharge. All this leads to computer breakdown and costing repair. The DustEND filter can be applied to clean the air form dust. It is presented by the filter sheet made of lt urethane plastic foam with an open mesh. It has a sticky side. The filter delivers low fan noise level, clean computer for many years, stable low processor temperature, and long term of service of spare parts.The G3 filter is made from polyurethane foam with an open cell. Material is a high efficiency filter, sifting large and minute particles of dust up to 5 microns. Best for PCs that need high cleanliness.