Model PMI 425 -Fine Particulate Sampler

The PMI 425 instrument is manual machine used for sampling of Fine particles (PM2.5) from Ambient air & based on impactor design as per USEPA, Ambient air enters through an omni-directional inlet designed to provide a clean aerodynamic cut-point for particles ‘greater than 10 microns. Particles in the air stream finer than 10 microns proceed to a second impactor that has an aerodynamic cut-point at 2.5 microns. The air sample ond fine particulates exiting from the PM 2.5 impactor are passed through a 47 mm diameter Teflon fiter membrane that retains the fine particulate matter. ‘The PMI 425 having customized specially made Rotameter which having 16.67 LPM indicated flow mark & with Dry Gas Meter to provide a direct measure of the total air volume sampled.light weight, sturdy Aluminium cabinet, more compact, can be carried in a Car trunk and is ideal for field use.