Vizag filters provides automatic self-cleaning viscous air filters. The company develops these filters in order to clean ventilated air in comfort and industrial plants. These automatic self-cleaning viscous air filters provide advantages where dust concentration in surrounding air is heavier as in coal and lignite mines, steel plants, foundries and other similar industries. The working principle of the air filter is that the dust laden air pass through oil filter screens and leave dust particles on moving screens due to adhesive action, which is again removed by oil at the filter bottom. The collected dust is then discharged outside manually or automatically depending on the size of these automatic self-cleaning viscous air filters.