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ISO 14644-1:2015 Revisions Summary

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Sensitivity 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 Portable 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, FacilityNet or FacilityNet Pharma Software.

Power is provided to the unit through the use of the on-board, hot-swappable batteries. Power can also be provided through the use of an external AC power source, which can simultaneously power the unit and charge the on-board batteries.

The Lasair III Portable Particle Counter accepts inputs from a wide range of environmental sensors through the four built-in 4-20 mA inputs. Wireless network communications are made easy with an externally mounted wireless adapter, simplifying communications with network systems. 

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Lasair® III 5100 Aerosol Particle Counter


  • 100 LPM, 50 LPM, or 1 CFM flow rates available
  • 100 LPM flow samples 1 m3 in 10 minutes
  • ISO 21501-4 compliant with a built-in pulse height analyzer (PHA). Available with ISO 17025 calibration certificate. (Optional)
  • Large, 8.4 inch IR touchscreen can be used when wearing gloves for simplified use
  • Calculates and creates reports for ISO 14644-1:1999, ISO 14644-1:2015, EC GMP Annex 1, China GMP, and FS 209E
  • Access via a Web browser
  • Compatible with common cleanroom cleaning chemicals
  • Choose from 12 languages for display and printout
  • ISO 14644-1:2015 Compliant


  • Comprehensive validation manual makes it easy to meet pharmaceutical regulatory requirements
  • Operates in cleanrooms via a web browser: Set up, sample, display, print, download data
  • Removable batteries with optional external charger for continuous mobile use
  • Pre-configured sampling recipes to reduce operator errors
  • Long-term data archiving with DataAnalyst software
  • Local printout for immediate hardcopy results
  • USB electronic printouts for long term storage
  • WiFi communication for easier data transfer and instrument control (optional)
  • CSV file download for easy data integration
  • Interactive software steps the user through the ISO 14644-1, EC GMP Annex 1, China GMP and FS 209E room certification process
  • Up to 32 customizable alarm comments for easier cleanroom problem identification
  • Modbus TCP/IP communication protocol for a wider integration with third party monitoring systems
  • Large IR touchscreen for simplified use
  • Quiet pump improves work environment
  • 21 CFR Part 11 compliant download


  • Cleanroom monitoring
  • Facility certification for ISO 14644-1:1999 & 2015, EC GMP, China GMP, FS 209E
  • Trend analysis
  • Statistical process control
  • Troubleshooting particle excursions
  • Manifold compatible
  • Portable or dedicated use
  • Compressed Gas Monitoring

Available Accessories

Printer Paper

Printer Paper

Printer Paper is for use with standard printers, as well as for cleanroom-appropriate devices.

Spare Lithium Battery

Spare Lithium Battery

The Spare Lithium Battery is to keep on hand for replacement power as needed. Also available as a four-pack.

Facility Net Software

Facility Net Software

Facility Net Software provides a solution for comprehensive environmental monitoring, including a real-time and historical data display. Compatible Particle Measuring Systems particle counters and molecular contamination monitors, as well as various third-party products.

High-Pressure Diffuser (0.1 CFM)

High-Pressure Diffuser (0.1 CFM)

The High-Pressure Diffuser lets you count particles in high-pressure gas lines by taking gas at pressures between 40 and 100psi and reducing it to a level acceptable to particle counters designed for atmospheric pressure.

Related Products

Nano-ID® NPC10 Aerosol Particle Counter

Provides meaningful data fast by introducing fluid to capture even the smallest particles.

Lasair® III 110 Airborne Particle Counter

A true 0.10 μm particle counter, providing real-time measurement of yield-impacting particles with three configurations.

HandiLaz Mini hand held Particle Counter

Easy-to-use USP 797 solution; ergonomically designed with pharmacists in mind,.

Still have Questions?

Our customer support is ready to answer your questions or get a quote ready for you.

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