
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
High Concentration OPC at AIHce 2018
Philadelphia, PA – May 21st – Particles Plus was in attendance and exhibiting at the 2018 American Industrial Hygiene Conference and Exposition at the Pennsylvania Convention Center in downtown Philadelphia. The event provided attendees with the opportunity to...
Remote Particle Counters Reducing Energy Consumption
Portland, ME – April 30th – Particles Plus, a corporate sponsor of the Maine Indoor Air Quality Council, was on hand at the annual IAQ & Energy 2018 event held at the Holiday Inn Portland By The Bay. While the event focuses on many areas and aspects of indoor...
Particles Plus, Proud Platinum Sponsor for the EIA
San Diego, CA – March 17, 2018– Particles Plus was a proud Platinum Sponsor for the Annual Environmental Information Association (EIA) National Conference and Exhibition, held at the Hyatt Regency Mission Bay. The team attended in support of the association and its...