1L / min -5L / min 02 Purity 30% -90%

For people:
White-collar women: Skin care,Skin nutrition and elasticity maintenance,Reduction of sub-he*lth status.
Pregnant womenï¼Helpful to fetus development.
Businessman:Relaxing physical and mental tension,Improving physical ability, Reducing sub-he*lth status and improving work efficiency.
Students: Improving remembrance and reducing mental fatigue.
Plateau tourism lovers: Reducing the symptoms of hyp0xia on plateau.
Product information
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