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
Particles Plus, Inc. Wraps Up Handheld Training with IAQA
Particles Plus, Inc., in partnership with the Indoor Air Quality Association, hosted its Enhancing IAQ Investigations with Handheld Particle Counters Workshop on September 16, 2025, at its Stoughton headquarters, featuring expert instruction, case studies, and hands-on training with 8000 Series instruments.
Particles Plus, Inc. Participates in EAC 2025
Particles Plus, Inc. will showcase its latest aerosol measurement technology and connect with global researchers at booth 27 during the European Aerosol Conference (EAC) 2025 in Lecce, Italy, from August 31 to September 5.
Particles Plus, Inc. Facility Offers Unique Setting for Executive Board Retreats
Particles Plus, Inc.’s newly expanded Stoughton headquarters is positioning itself as a premier venue for executive board retreats and strategic leadership meetings, offering modern facilities, convenient access, and a professional yet welcoming environment.