Particle Aerodynamic Size Separator (PASS)
The PASS has been designed and developed as an import substitute for measurement of aerosol aerodynamic particle size distribution in a host of fields such as pollution and atmospheric studies, inhalation hazard evaluation, characterizing lung delivery systems, material synthesis etc. Aerodynamic particle sizing is based on the principle of inertial impaction and separates particles according to their aerodynamic diameters in the range of 0.53-10 µm in seven class intervals. Cascade impactors are the most rugged and widely used systems all over the world for aerodynamic sizing.
