Method for concentrating airborne particles and microorganisms by their injection into a swirling air flow
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United States of America Patent
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Oct 19, 1999
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N/A
app pub date -
Jul 7, 1997
filing date -
Jul 7, 1997
priority date (Note) -
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Abstract
A method for concentrating airborne particles and microorganisms by injecting them into a swirling air flow from where they are removed into one or more receiving tubes. The swirling air motion and the aerosol injection into it are achieved by pushing or drawing the airborne particles and microorganisms through one or more nozzles that are directed at an angle towards the surface of the containment vessel. The ratio of air flow rate into the vessel to the air flow rate through the receiving tube is equal to the maximum aerosol concentrating ratio desired.
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