In order to measure PM10 and PM2.5 levels in ambient air, two different samplers need to be operated simultaneously. The combo sampler reduces this effort and combines both the sampling into a single instrument, making it cost efficient and at the same time provides easiness in operation and transportation. Our Combined Sampler AI-103 is advanced state of art technology based instrument for combined sampling of PM10, PM 2.5 and four water soluble gases SO2, NO2, NH3 and O3.