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About product and suppliers:
        Alibaba.com offers 618 negative ion therapy device products. About 28% of these are multi-functional beauty equipment, 20% are physical therapy equipments, and 4% are air purifiers. 

A wide variety of negative ion therapy device options are available to you, such as free samples, paid samples. 

There are 538 negative ion therapy device suppliers, mainly located in Asia. The top supplying countries are China (Mainland), South Korea, and United States, which supply 99%, 1%, and 1% of negative ion therapy device respectively. 

Negative ion therapy device products are most popular in North America, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 214 with ISO9001, 205 with ISO13485, and 62 with Other certification.