• Remove more than 99% airborne particulates of diameter 0.03mm, eliminate odors and toxic gas.• Stream your favorite music wireless via the built-in Bluetooth speaker during purifying room.• Filters the air with the lowest noise level as quiet as 25dB without Bluetooth speaker for a restful and soothing indoor environment.• Easy to use features and powerful purification into a small frame that is sure to fit where you put it• Smart sensors detect the quality of indoor air and will automatically adjust the unit"™s fan speed to provide a superior clean.• WBM aims to provide you the best quality product. If you have any problems with this item, please contact us.