Sanpar microfilters from bangalore has introduced explosion proof heatless driers, an import substitute product. These explosion proof heatless driers work in hazardous environments such as zone-i and ii, group iia and iib hazardous zones. The driers are set with pre filter and after filter to remove oil and dust particles and deliver dry compressed air with dew points: -40 degree celsius and - 70 degree celsius according to the customer need. The drier is available with continuous dew point measuring indicator and contains a twin adsorption tower, control box, valves and fittings.