Dear all,

I am trying to measure how many particles per unit volume in the
air. Anyone knows where I can get this device? Any sugestions would be
appreciated. Thank you.

Ling-Sheng Jang
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MicroFluidics Laboratory
University of Washington, Seattle, USA.
web site: http://lettuce.me.washington.edu/micropump/
email: lsjang@u.washington.edu
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