Improving particle counting and molecular contamination monitoring is a time-consuming task. Particle Measuring Systems offers a complete line of particle counting and molecular monitoring services to help you. Rely on our expertise and our full range of particle counters to find particle sources, characterize processes, or to monitor particles in cleanrooms. With over 35 years of application experience and expertise, we are the world leader in particle counting. We offer the most complete range of services including Lab Testing, Site Testing / Troubleshooting, Training (including Particle College), Airborne Molecular Contamination (AMC) Testing, and Installation and Validation of particle counters for pharmaceutical cleanrooms.