
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
RESET® Spearheads New Airborne Particulate Monitoring Standard
Shanghai, China Working with an international team of experts from universities on the forefront of air quality monitoring research, RESET® will be releasing a new air quality standard aimed at providing a framework for qualifying airborne particulate sensors -...
Particle Counting for Filtration Monitoring in Medical Facilities
For years, the most common method of monitoring filter banks in institutions such as hospitals and medical facilities has been the use of physical and digital manometers or pressure transducers. Mechanical (Magnehelic) and even fundamental (u-tube) manometers have...
Particles Plus and IAQA Raise Funds for Charity
West Palm Beach, FL – February 18th, 2020 - Particles Plus, Inc., was in attendance at the 2020 Indoor Air Quality Association Annual Conference and Expo. Particles Plus, a Platinum key sponsor for the event, stepped up to help raise money for the Asthma and Allergy...