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KA-7080 Portable Mini Fan and Air Humidifier
Brand: Generic / OEM
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Audited BOM: 10 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The ultrasonic transducer is sensitive to water impurities, leading to premature failure and loss of humidification function, as reported in reviews and RMAs.
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