For PM-10 sampling, the GMW Model IP 10-8000 size selective particulate high volume sampler measures particulate with aerodynamic diameters less than or equal to 10 microns. This unit features the basic high volume air sampler with sampling inlet, mass flow controller/solid state or digital timer, pressure transducer flow recorder and filter holder. The removable collection shim provides efficient cleaning during maintenance periods. This unit meets all of EPA PM-10 performance specifications.