... , Dark Circles, 2. Pigment Removal, Skin Rejuvenation, 3.Skin Tightening, Whitening, 4.Wrinkle Remover Technical specificationrating power ≤370Woxygen flow 1-3L ... , improve insomnia, decompress and quicken the excretion of toxin. portable facial care sysytem high pluse Oxygen concentator Jet