... , convalescence are long;Only act on skin surface layer, can not reach deeper of skin. Whenas oxygen&water device shield those abuse ago ... , at the same time, their exiguous liquid dropping and oxygen into skin corium, make skin absorb alimentation, stimulate renew arrange of collagen, at ... % 50Hz 3AJet speed≥200m/sDimension32*35*93cmDischarged granule5~80μm Oxygen Jet skin care beauty machine