| 摘要 |
The present invention relates to an apparatus (2) for counting the number of ions emitted by an ion source (4) of a handheld domestic appliance (6) comprising a collector housing (20) for collecting ions impinging on the inner surface (30) of the collector housing (20) and determining means (36) being coupled with the collector housing (20) in order to determine the number of ions collected by the collector housing (20), said collector housing (20) having an input opening (32). The input opening (32) is dimensioned such that the domestic appliance (6) is at least partially, preferably completely, insertable into the collector housing (20) via input opening (32). The present invention is further related to a method for counting the number of ions emitted by an ion source (4) of a handheld domestic appliance (6) and to a use of the apparatus (2) and method, respectively.
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