​Negative Ions
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It has an invigorating effect on the human body, while positive ions have the opposite effect, quite often inducing a feeling of tiredness.
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Negative ion emission in various places:
Base of waterfall - 3000 ions/cm³
Countryside - 1300 ions/cm³
Mountain Peak - 2000 ions/cm³
Home - 100 ions/cm³
Car Interior - 50 ions/cm³
Office building - 130 ions/cm³

Negative ions generated by zeni products: 1000 ~ 2500ions /cm³
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​The health benefits of negative ions:

- stabilizes the alkalinity of bodily fluids
- improves air quality with non-toxic free radicals
- helps calcium absorption
- relaxes the body
- accelerates physical recovery
- dilates blood vessels
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Negative Ion emission of zeni products:
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Negative Ion emission of another brand of ionic product:​

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