| 摘要 |
A motor vehicle ventilation apparatus for providing ventilation by a fan (3), located within an air channel (1) of the apparatus, whose operation can be multiply, or step, adjusted by "switching in" performance resistors (8). The performance resistors (8) and a step switch (7) required for adjusting operation of the fan (3) are arranged on members forming the air channel (1), or are in the air channel, within an effective ventilating range of the fan (3).
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