Naneos PartectorTEM Operation Manual page 6

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Measurement unit
The particles are measured in terms of alveolar lung-deposited surface
area (A-LDSA), a metric which, according to latest results from toxicology
studies, is likely more health relevant than the traditionally measured
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particulate mass or particle number. Its unit is described as m /cm
(square micrometer per cubic centimeter).
For more information about the measurement unit and its relevance read:
http://www.naneos.ch/pdf/LDSA.pdf
Aerosol inlet and outlet
The aerosol inlet is located at the top of the instrument. The internal pump
provides an air flow of about 0.5 l/min. The standard aerosol inlet has a 6
mm barb for tubing connection and contains a coarse wire mesh to keep
coarse dirt and small insects out of the instrument.
The air exits the device via the USB-port and SD-card
opening in the housing. Note that the air is not filtered
internally, so do not connect the instrument to hazardous
nanoparticle sources!
Tubing
When using the Partector TEM with tubing (to attach the optional
cyclone, or for other purposes), make sure not to use conductive silicone
tubing. This type of tubing is frequently used because with conductive
tubing, there are no electrostatic losses of particles, and the silicone
tubing is very flexible. Unfortunately, this type of tubing releases silanes
which leed to rapid fouling of the Partector's corona wire. We
recommend using PVC tubing instead – a nice flexible version is Tygon
S3 E-3603. If in doubt about using tubing, please contact us. In any
case, tubing should only be as long as necessary to prevent particle
losses in the tubing.
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