Ready for Transfer

High Air Volume to Low Liquid Volume Aerosol Collector


Laboratory: Lawrence Livermore National Laboratory

Technology: An aerosol collector has been designed and is the ideal next-generation air sampler for continuous air quality monitoring.

Opportunity: Available for licensing.

Overview: Aerosol collectors are used during continuous air monitoring to detect airborne pathogens and other pollutants. Aerosol collectors continuously collect air samples and concentrate the airborne materials into a liquid sample for subsequent preparation and analysis. Most commercial aerosol collectors now available for field use are large and power-consuming, and produce collected samples into large volumes of liquid, typically more than 10 mL. When these collectors are used, the sample volume must be “sub-sampled,” effectively diluting the sample and reducing sensitivity of detection.

LLNL’s new aerosol collector can collect particulates at a high airflow rate and directly deliver them into a liquid volume of 1 mL or less. The collector is compact, uses low power, and has high particle collection efficiency. It can collect all airborne particulate matter, but is especially suited for microorganisms for pathogen detection.


  • Low power consumption—110V or battery consuming 100 watts maximum
  • Compact design—6” w x 6” d x 6” h (0.125 cubic feet)—less than 10 lb.
  • High airflow rate resulting in low liquid volumes—up to 275 lpm
  • High collection efficiency—greater than 70% over 1-10 micron range at 30,000/min.
  • Large particulate size range—0.5-10 microns (optimized for 1 micron)
  • Low noise level—60 dB (A) at nominal 275 lpm flow

Potential Applications: The aerosol collector can be used for all continuous air monitoring applications, but is especially suited for microorganism detection applications.

Contact: Catherine Elizondo

For more information, view LLNL’s technology listing.