... human metabolism activities. If long-term hypoxia, it will produce a series of harm to the human body and skin.Brain ... oxygen with aromatherapy by inhalation, can have a positive effect on the following issues:(A) Respiratory: sinusitis, sore throat, flu, etc.(B ... , improve sensitive skin.Notice: 1).After absorbing oxygen 15 mins, should take a breather, this is more suitable for the lung weak ...