Patent ID: 11946842
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A system for concentrating particles in an air stream, said particles comprising airborne suspended PM2.5 aerosol particles, the system comprising: an air channel having a first open end and a second open end, the air channel enclosed by one or more channel walls extending from at least the first open end to the second open end, said air channel further comprising an interior region extending from at least the first open end to the second open end; and at least one stage comprising at least one set of heater elements, said set comprising two heater elements positioned along opposing sides of said channel walls between said first open end and said second open end, said at least one of two heater elements positioned near a periphery of said channel walls of the air channel and configured to force particles in the air stream away from the periphery of said channel walls and towards an interior region of the air channel so that said at least one stage forms a focused beam of said airborne suspended PM2.5 aerosol particles.