
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
New Real-Time Meter Pinpoints Particulates
June 2, 2014 – Los Altos – Particles Plus announced the introduction of its new, patent-pending, industry-first Real-Time Meter function for their particle counters. This feature displays visual and auditory count data that gives an indication of particle counts for...
Eric Street Added to Sales Team
May 5, 2014 Medford, OR – Particles Plus announces the addition of Eric Street to their sales team. Eric brings >25 years of experience in the particle counter industry to help build and support the growth of the company’s brand. “I was so impressed with the...
Next Generation Handhelds
April 23, 2014 Boston – The new 8000 Series Particle Counters, launched by Particles Plus, introduces next generation handheld instrumentation covering an extremely wide range of airborne particle counting and monitoring applications. The 8000 Series Particle Counters...