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

Claim 11:
12. A thermophoretic particle concentrator device, comprising: at least one stage comprising at least one set of thermophoretic heater elements, said set of thermophetic heater elements comprising two heater elements positioned near channel walls of an air channel enclosed by said channel walls, at least one of said two thermophoretic heater elements arranged on opposing sides of said channel walls, between a first open end of said air channel and a second open end of said air channel, and configured to thermophoretically force airborne particles comprising airborne suspended PM2.5 aerosol particles in the air channel away from 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.