The V-Air 9009 (CAAQMS) from Vasthi Instruments uses beta attenuation monitoring technology to accurately monitor PM 10 and PM 2.5 (CAAQMS) pollutants. For more information, contact vasthi.com!.weare provideing best PM10 PM 2.5 services manufacturing PM10 and PM2.5 are terms used to refer to particulate matter, which consists of tiny solid particles or liquid droplets suspended in the air. These particles are classified based on their size, specifically their aerodynamic diameter:PM10: PM10 stands for "Particulate Matter 10." It includes particles with a diameter of 10 micrometers (µm) or smaller. These particles are small enough to be inhaled into the respiratory system and can include dust, pollen, mold spores, and other fine particles. contact us : 7670887909,6302677968