靜音。直流馬達Q運轉阻力小，運轉更柔和，風扇運轉更安靜。

1.Quiet Operation – DC motors have lower resistance and smoother operation, making the fan run more quietly.
2.Energy Efficient – While electric fans already consume little power, DC motors further enhance energy savings.
3.Stepless Speed Control – Some smart fans offer up to 100 different speed levels for precise airflow adjustment.
4.Longer Lifespan & Low Failure Rate – DC fans are more durable and have a lower risk of malfunction compared to AC fans.