
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
Tom Grillo Joins Particles Plus Team
September 2, 2014 Boston - Particles Plus announced that Thomas Grillo has joined the company as North American National Sales Manager to strengthen the company’s recent launch into the global contamination monitoring marketplace. Thomas comes with a wealth of...
Ultra Small High Flow Vacuum Pump
Boston – August 14, 2014 – Particles Plus, an innovative new manufacturer of state-of-the-art particle counters and vacuum pumps, has announced the introduction of their new 45 LPM (1.6 CFM) rotary vane vacuum pump. The new vacuum pump, model UM-28100, provides...
Particles Plus Acquires Airy Technology
July 9, 2014 San Francisco - SEMICON® West - Particles Plus announces the acquisition of Airy Technology of Orem, Utah, an industry leading manufacturer of handheld and remote particle counter technology. With operations in Japan and China, Airy Technology's...