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Software PASWin for configuration, control, data logging and data analyses of particle counters and aerosol spectrometer

The Particle Analyzing Software PASWin has been developed for particle measuring devices and analyzes particle size distributions of dispersed materials in liquids and gases and runs under Windows.
Particle Analysis Software PASWin, measurement result at the monitor display
The comfortable software supports several particle measuring devices:

- Laser Aerosol Particle Size Spectrometers of series LAP 322
- Clean Room Particle Counter series LAP 340
- Liquid Particle Counter of series FAS 362
- Other particle measuring devices of external manufacturers.

By means of the calculation base and calibration functions it is possible to determine various particle size distributions and their integral parameters. The won information can be displayed graphically (monitor, printer) or tabularly (monitor, printer, data file).\r\n\r\n


ISO 9276-1
ISO 9276-2
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  • compatible with several measurement devices for the analysis of particles (aerosols, suspensions)
  • representation, conversion and analyses of particle size distributions (differiential and/or cumulative) and particle concentrations according to ISO 9276-1 and ISO 9276-2
  • simple export of mesurement data and graphical representations as well as posibility of automated protocoll generation via MS-Excel
  • manual or automated measurment procedures (single analyses, repeated measurments, continous monitoren)
  • statistic evaluation of performed analyses and determination of fractional (size-resolved) separation efficiencies


  • determination of particle size distributions
  • display of measured curves and trends using the data logger
  • comparison of particle size and concentration measurements
  • determination of separation efficiencies, for example, for the filter characterization
  • La A, Zhang Q, Levin DB, Coombs KM The effectiveness of air ionization in reducing bioaerosols and airborne PRRS virus in a ventilated space. Transactions of the ASABE 62 (2019) 5, 1299 - 1314