It is important to check the amount of negative ions the product generates.
You cannot tell if it is good or not without this figure.
You should contact the shop if you cannot find this important info.
10,000-2,000,000 pcs/cc can be detected at the blow off points of most of negative ion generators,
air purifiers and hair dryers. No
recommended dosage of negative ions is established though.
If you wear the product, it may work even if it generates a small amount of negative ions.
However, please be careful if it only generates an
extremely small amount or the shop does not give you the figure.
Enquiry example
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How many negative ions per 1cc does your product #xxxxx generate?
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