oxygen facial machine 1.98% pure oxygen 2.wrinkle and pigment remove 3.whiten, ... .CE, OEM microdermabrasion machine Working principle:Introducing world's most advanced PSA technology (transformer adsorption principle), this machine can instantly and ... acne, balancing grease, improve sensitive skin.Notice: 1).After absorbing oxygen 15 mins, should take a breather, this is more suitable for ...