Powerful MotorSolid motor construction with newly technology, greatly reduce the risk of fire hazard due to overheating. Powerful motor comes with 3 speed, stable performance and high efficiency. | Anion+ CationAdditional anion produced from the air purifier combines with cation deprived from dust in the air, adding weight to the dust and falling down to the ground. | Filter WarningAccording to usage frequency and working area, recommend to change the filter every 6-8 month for better performance. The filter button reminds of changing the filter. | 7 Changeable Night LightNight light is very soothing with 7 colors for choosing by pressing 1s to fix your favorite one. If no need light, press 3s to turn off the light. |