The TSI AEROTRAK 9350 and 9550 Portable Particle Counters offer best-in-class features and versatility. They provide a 1.77 CFM (50 L/min) flow with 0.3 or 0.5 µm sensitivity. Compatible with TSI’s accurate ventilation probes that measure air velocity/temperature, these products provide you with a complete solution for your certification needs. These particle counters can generate pass/fail reports for ISO 14644-1, EU GMP Annex 1, and FS209E. These products can be used as a stand-alone particle counter or integrated into a facility monitoring system like TSI’s FMS 5. Both Models 9350 and 9550 comply with all the stringent requirements set forth in ISO 21501-4.