Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concentration of airborne biologicals. Sensors...http://www.google.fr/patents/US7578973?utm_source=gb-gplus-shareBrevet US7578973 - Devices for continuous sampling of airborne particles using a regenerative surface
Devices for continuous sampling of airborne particles using a regenerative ...