Count On Us™
Particles Plus offers a line of advanced-technology particle counters, air quality monitors, and environmental sensors. As the most vertically integrated particle counter manufacturer and technology licensing company in the industry, Particles Plus engineers and manufactures its own counter, display, battery, vacuum pump, and sensor technology from the ground up. Added intelligence in each module results in products with superior performance, extended features, accuracy, quality, reliability and value.
The most accurate sensor and particle counting technology on Earth
Made in USA
100% of Particles Plus® products are designed and assembled in the USA, while 89.2% of the parts are built by 35 different suppliers located in the USA and Canada.
Latest News
Breakthrough Features Redefine Air Monitoring Technology
Particles Plus, Inc. unveiled its advanced lineup of U.S.-built particle counters and environmental monitors, featuring multi-controller architecture, remote diagnostics, and industry-leading usability to deliver unmatched accuracy, versatility, and reliability for air quality professionals.
Particles Plus, Inc. Attends AHR in Orlando
Particles Plus, Inc. showcased its latest air quality monitoring innovations at the 2025 AHR Expo in Orlando, connecting with industry professionals, demonstrating new technologies, and earning an Innovation Award nomination for its 15000 Series CPC.
Particles Plus, Inc. Empowers Scientific Research
Particles Plus, Inc. offers an academic discount program that gives universities affordable access to the 15000 Series Condensation Particle Counter, an industrial-grade, user-friendly tool for real-time ultrafine particle measurement, backed by responsive expert support for aerosol, environmental health, and atmospheric chemistry research.