Patent ID: 8518137
Filing Date: 2013-08-27
Classification: G01N

Abstract:
1. A system for containing an aerosol comprising: a chamber for the aerosol having a pair of opposing apertures defining an unobstructed path extending through the chamber; a pair of internal flow generators positioned inside the chamber, each internal flow generator associated with one of the pair of opposing apertures, each internal flow generator configured to generate substantially vertical internal flows across the associated one of the pair of opposing apertures, inside the chamber; a filtering flow generator configured to generate filtering flows across each of the pair of opposing apertures, outside the chamber, substantially parallel to the internal flows; wherein the filtering flows are configured to entrain any of the aerosol that exits the containment chamber through the pair of opposing apertures; and wherein the filtering flows are filtered by one or more filters after flowing past the pair of opposing apertures.