Kondensationspartikelzähler mit Sättiger

Condensation particle counter (1) comprising a main channel (12), through which a carrier gas (3) flows along a main flow path (4) during measuring operation, a saturator (5) for enriching, in particular for saturating, the carrier gas (3) with an operating fluid ( 2), wherein the saturator (5) comprises a saturation body (27) which can be impregnated with the operating fluid (2) and which is impregnated during measuring operation, and wherein the saturation body (27) has at least one saturation channel (28) following the main flow path (4) for passage and enrichment of the carrier gas (3), a nozzle device (6) which opens along the main flow path (4) after the saturator (5) into a nozzle section (13) of the main channel (12), which is connected to a measuring aerosol supply line (7) and for introducing a particle-laden Measuring aerosol (8) is set up in the enriched carrier gas (3), a condensation region (9) arranged along the main flow path (4) after the nozzle device (6) for supersaturation of the mixture containing the carrier gas (3), the operating fluid (2) and the Measuring aerosol (8).