Highly monodisperse aerosols are required for experimental studies that need to explore the dependence of something on particle size. The Flow Focusing Monodisperse Aerosol Generator (FMAG) Model 1520 is an aerosol generator for producing monodisperse droplets and aerosol particles.


The FMAG 1520 uses the aerodynamic flow-focusing effect to accurately control the diameter of a liquid jet for generating monodisperse droplets from 15 – 90 µm in diameter, which are then dried to produce particles from 0.7 to 15 µm in diameter. In normal operation, a stream of liquid flowing out of a 100-µm-diameter nozzle is stretched to a much thinner stream by the focusing gas flow. The resulting thin liquid jet then breaks up into uniform-sized droplets after passing through a vibrating ceramic aerosol generation head. The large 100-µm-diameter nozzle in the FMAG enables aerosol generation over extended periods of time without experiencing nozzle clogging problems, and at a very low liquid pressure. This low shear stress generally enables biological cells to remain viable, even after dispersion as uniform particles.

A variety of solid and liquid particles of a uniform and accurately known particle diameter can be generated to provide laboratory standard aerosols for calibrating droplet and aerosol particle sizing instruments, animal exposure studies, biological aerosol characterization, or other studies where micron-scale and highly monodisperse particles are needed.

Calibration of optical aerosol spectrometers
Calibration of inertial impactors
Generation of biological aerosols
Generation of aerosols for animal exposure studies
Calibration of droplet sizing instruments

Generate monodisperse droplets by a combination of aerodynamic flow-focusing and periodic mechanical perturbation
Generate monodisperse aerosol particles of an accurately known particle diameter
Low shear stress, non-clogging design
Built-in bipolar corona aerosol neutralizer (no radioactive)
An easy-to-use instrument with advanced touch-screen control and user-friendly features

Brošure i tehničke specifikacije

Particle Instruments Catalog US

AAAR 2017 Conference: Influence of Shape Factor and Effective Density on Aerodynamic Sizing of Particles Generated by the MSP 1520 FMAG Poster

Flow-Focusing Monodisperse Aerosol Generator Model 1520 Spec Sheet (A4)


Capabilities of the Flow-Focusing Monodisperse Aerosol Generator Model 1520 (FMAG-001) A4