The V-Air 9009 (CAAQMS) from Vasthi Instruments uses beta attenuation monitoring technology to accurately monitor PM 10 and 2.5 pollutants. For more information, contact vasthi.com!. weare provideing best PM10 PM 2.5 services manufacturing PM2.5: PM2.5 stands for "Particulate Matter 2.5." It includes particles with a diameter of 2.5 micrometers or smaller. PM2.5 particles are even smaller and can penetrate deeper into the respiratory system, potentially causing more health problems. These particles are often a major concern in air quality discussions because they can include fine dust, sm