Lasair® III 110 Aerosol Particle Counter

The Lasair® III 110 Aerosol Particle Counter is a laser diode-based true 0.100?m particle counter with 1.00CFM flow rate that doesn’t negatively impact your environment. It provides real-time measurement of yield-impacting particles with three configurations to meet your unique application needs. With a comprehensive set of features and unequalled accuracy, the Lasair III 110 Particle Counter offers reduced operating costs and the reliability and longevity to support its three-year laser warranty. The Lasair III 110 Particle Counter can be used as mobile counter to localize source of particles, and it comes with a full range of accessories for monitoring in different applications, including high-pressure gas. It features a chemical-resistant, stainless-steel casing that is easy to clean/wipe down and is designed to minimize particle traps. Patented Smart Flow technology eliminates traditional undercounting errors in manifold sampling. Optional onboard batteries provide over seven hours of continuous mobile use, so you can run a sample for an entire shift without having to leave the cleanroom. What does true 0.100?m particle detection mean? Call us to find out more!


Saving/reloading recipes reduces time to certify your cleanroom is error free, so you can make the right decisions and move onto another process
Control cleanroom monitoring remotely via web browser: set-up, sample, display, print, download data and upload sample recipes without having to re-enter the cleanroom
comprehensive data management
Data download to Excel or USB flash memory key
Use same particle counter for ISO Class 1-9 applications
Eliminates need for frequent, costly laser cleaning
Optional critical orifice configuration can use house vacuum for aerosol manifold applications

Features & applications


Diode laser
Eight user-adjustable sizing channels from 0.1 to 5.0?m
Saves up to 10,000 samples for review, sorting, data filtering and printing
USB data download to flash memory key
Builtin thermal printer
Large, 8.4in color touchscreen display for simplified use
Quiet carbon-free blower/pump for portable applications
Integrates up to four environmental sensor:, differential pressure, temperature and relative humidity, air flow velocity and more
Optional high-efficiency exhaust filter for ISO Class 1-2
Available in 12 language so you can use the same instrument and process across language barriers
Calculations and reports for ISO 14644-1 or FS 209E
Interfaces with FacilityNet Software for comprehensive data management


Cleanroom and minienvironment monitoring
High-sensitivity applications
Facility certification to ISO 14644-1 or FS 209E
Troubleshooting/mobile applications
Manifold sampling (with Aerosol Manifold II)
Process gas monitoring (with High Pressure Diffuser)
Ultraclean zones (ISO 1-2)

More information

  • How do I program a recipe and assign it to a location using the Lasair® III Aerosol Particle Counter?
  • Refer to “Instructions for Programming Recipes and Assigning Locations” for instructions on how to program a recipe and assign it to a location using the Lasair® III Aerosol Particle Counter.

  • What are the printer paper part numbers for the Lasair® III Aerosol Particle Counter?
  • Part numbers 1000000975 (cleanroom paper) and 1000009974 (thermal paper) can be used for the Lasair® III Aerosol Particle Counter.

Check back for additional FAQs related to this product.

Available accessories

All available accessories


Printer Paper

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


Spare Lithium Battery

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


Isokinetic Sampling Probe

The Isokinetic sampling probe allows you to move sample collection to where you need it most.


External Vacuum Pump

When in an area with no central vacuum, the External Vacuum Pump allows you to monitor hard-to-reach places with a remote particle counter.


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.

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