Pune-based Filter On [I] Private Ltd supplies electro-static air filtration/ emission control system that is the best modern method to get clean and healthy surrounding with many added benefits over conventional mechanical systems. It has a concise modular construction having 4000 to 50,000 CMH air handling capacity. With numerous units, any capacity can be met with. Negligible pressure drop initial is 3.0 mm WG Max. High-grade filteration efficiency of dust particles of 952 percent down to 0.3 micron and above is possible. Semi-clean or clean room atmosphere of Class 1, 00,000 or Class 10,000 can be achieved without use of HEPA filters. Alternatively HEPA/ULPA filters life is increased by 4 to 5 times, if this system is applicable as pre-filtration system. Can be installed with central AC plant [AHU], air washer/ industrial ventilation system, humidification/de-humidification plant, without much modifications to get clean/healthy working environment, or in process exhaust system to get pollution free emission well within the limits. As no dust/dirt is allowed to settle on fins of conditioning coils, Filter-On enhances heat transfer efficiency, declines cleaning cost and early replacement cost. Similarly exhaust emission control can be achieved well within the air pollution limits.