
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
Jason Cabral Joins Particles Plus
Boston – March 14, 2016 – Particles Plus announced that Jason Cabral has joined the company’s growing service team as Technical Service Manager, overseeing the daily operations for the calibration departments. Jason will also be acting as the main interface between...
Patent Awarded for Intelligent Modules
Boston – February 22nd, 2016 – Particles Plus announced today the award of their U.S. patent 9,158,652, for the application and invention of Intelligent Modules in a Particle Counter. This patent award is instrumental in the design of the Particles Plus systems’...
TVOC Sensor Boosts AQM Performance
Orlando, FL – AHR 2016 – January 25th, 2016 – Particles Plus revealed their new PID and NDIR environmental sensors, enhancing performance for their line of Air Quality Monitors. While previous versions performed to specification, the new sensors bring their...