An embedded acoustic sensor constantly listens to both the purifier’s airflow and the room’s ambience. When the household settles down—for instance at bedtime—the fan automatically drifts into whisper-quiet mode, so fresh air keeps moving while you hardly notice a sound.
By intelligently balancing purification power with near-silent operation, the system creates a calmer, healthier living space where you can sleep deeper, work happier, and simply enjoy the peace.
