| 摘要 |
PURPOSE: Disclosed is a filter locking equipment of an air purifier. The equipment judges the genuineness of the changed filter within a filter memory. CONSTITUTION: The devised equipment is composed of a filter (8) of a dust collector, a filter memory (7) containing an appointed cryptograph, an MPU (3) which plays a controlling role of the operation of the air purifier along to the cryptograph and a connecting code (9, 10).
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