Airborne Particle Counters

Particle counters are ideal for end-users who operate and maintain controlled environments and are seeking greater control over their spaces. In cleanrooms specified by ISO 14644-1, real-time continuous particle counters can detect potential contamination events before it’s too late to take corrective action. Cleanrooms, pharmaceutical plants, production plants, and even hospitals can benefit from using particle counters.

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.

The revisions to USP 797 reflect new science and evidence based on updated guidance documents, best practices, and new learnings. These updates to USP 797 become effective December 1, 2019.

Particle counting is important for maintaining USP 797 compliance. Both viable and non-viable particle counters need to be running in space. Setra's particle counters are non-viable samplers and can provide instant results on particle counts.

When selecting a particle counter, it is necessary to consider what building automation network it can communicate with. Examining the available options helps to ensure the particle counter will connect to your existing network. Setra's particle counters and air quality monitors can communicate locally and can also be easily integrated into a building automation and facility monitoring system with optional Wireless 802.11 b/g, Modbus RS485, or Modbus RS232 connections.

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.