Airborne Particle Counters

Particle counters monitor indoor air quality and airborne contaminants in large, critical spaces like pharmaceutical/industrial cleanrooms and healthcare facilities. They can also be used in public spaces of commercial buildings or in construction areas to ensure clean air free of contaminants.

Setra's Family of Particle Counters
Comparison of Particle Sizes

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How small are the particles that Setra’s devices can measure?

Particles are measured in micrometers (0.001 mm), also known as microns (μm). The naked eye can see objects as small as 50 μm, or roughly the thickness of a human hair.

Typical organic particles (e.g. bacteria, mold spores, etc.) range in sizes between 0.5 μm and 10 μm. Setra’s particle counters and air quality monitors can measure particles between 0.3 μm and 25 μm in diameter.

Why Should Hospitals Care About Particle Counting?

The ability for healthcare facilities to monitor, verify, and control environmental conditions is crucial not only for passing rigorous inspections but also for protecting the health and safety of their patients and staff. But today, most hospitals are not required to monitor particle counts -- even in operating rooms and patient isolation rooms...

Hospital operating room with air quality being monitored.
Particle Counting Applications

Explore Critical Environment applications that utilize particle counters to prevent contamination and ensure clean air standards.

Selecting the Right Particle Counter

Setra Systems makes particle counters and air quality monitors for many applications. Download our particle counter comparison and selection guide to help choose the correct particle counter for your application.

Featured Products

Handheld Air Particle Counter
8000 Series Handheld Particle Counter

Easy to configure, this particle counter displays up to 6 user-selectable size channels as well as temperature and relative humidity.

Product photo of the 5000 Series AQM Air Quality Monitor
5000 Series Air Quality Monitor (AQM)

This Remote Environmental Monitor measures 0.3 μm to 25 μm particles with mass concentration and stores critical indoor air quality parameters.

Product photo of the Setra 2510 Remote Airborne Particle Counter
Model 2510 Airborne Particle Counter

This Remote Particle Counter measures 0.5 μm and 5.0 μm with a flow rate of 1.0 CFM (28.3 LPM). It is the smallest remote particle counter available.