Air Particle Counting




Lasair III        - Local calibration                                                           

Range: 0.3 - 25.0 µm

Sets the standard for portable aerosol particle counters and meets the requirements of ISO 14644-1:2015 and  ISO 21501-4.

The Lasair® III Aerosol Particle Counter is designed for cleanrooms with your unique needs in mind. It sets the standard for portable aerosol particle counters in highly regulated environments, so you can make sure your environment is clean.

It can be used for both remote and mobile routine cleanroom monitoring. We know the requirements and we’ve done the calculations for you; cleanroom certification results are available through a local printout, downloadable via USB in a secure format, or through the use of external software packages, such as DataAnalyst .



Differences in Aerosol Particle Counter Results
The importance of local calibration
Selecting an air particle counter
Cleanroom Classsification
Product Focus 





Handilaz Mini II

Range: 0.2 - 10.0 µm


The Particle Measuring Systems HandiLaz Mini II is a new low cost, handheld solution for cleanroom environmental research and troubleshooting needs.The HandiLaz Mini II is uniquely suited for applications in research and testing laboratories. This compact unit offers an unlimited number of particulate size channels from 0.2-10 μm with 10 nm channel resolution. It utilizes a miniaturized, state of the art sensor with a simple touchscreen, single button operation and advanced on-screen analysis for getting physically close to and in detail with cleanroom environments. Features include ISO classification, on-board temperature and relative humidity measurement, PM2.5 and PM10 analysis, embedded flow meter, and continuous particle logging through the integration of temperature and differential pressure input into the particle measurement for enhanced analysis.

Adding the HandiLaz Mini II to an environmental monitoring toolbox provides the benefit of advanced environmental monitoring in a highly compact package.



Particle Measuring Systems releases the HandiLaz Mini II 

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Lab Instruments





Pharmaceutical Environmental Monitoring

Your Definitive, Modular and Turn-key Solution for Cleanroom Environmental Contamination Monitoring.
Monitor your viable and non-viable particles according to the most recent regulatory requirements. Count, report, document and manage your environmental monitoring data meeting 21 CFR Part 11 data integrity requirements.

System Configuration Examples
Our modular Systems can be configured to meet your specific needs! Here are three examples, or go here for a more complete listing of configuration examples.

 Learn More