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New 3000ml Hydrogen oxygen inhaler operate video：

New 1500ml hydrogen inhaler video :

900ml hydrogen oxygen inhaler video:

600ml pure hydrogen inhaler video:

300ml pure hydrogen inhaler video:

how to test the hydrogen oxygen machine flow rate（take 1500ml as a sample） ?

 

 How to test the PPB content of hydrogen-rich water cup? (Use hydrogen-rich water test kit to test)

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