The TSI Model 3332 Dilution System is designed to accurately dilute aerosols to produce a defined particle concentration and carry out certain measuring tasks.  This diluter can be used to limit the concentration of a sample stream so that an optical particle counter can work with higher concentrations.  Dilution factors of up to 100 can be achieved.  The particle size distribution will remain unchanged.  It can be used with the TSI 3330 and TSI 3910, both of which are offered by CleanAir Instrument Rentals.