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I heard that some negative ion generators produce ozone. Is there a safety standard?

Q.19 I heard that some negative ion generators produce ozone. Is there a safety standard?
The safety standard set by the Japanese Ministry of Health, Labour and Welfare is 0.1ppm or less. Some conditions apply but these levels of ozone concentration are said to be not harmful for the human body in working areas. 0.1ppm of ozone can be detected by the sense of smell.
 
Author: Masaharu Nemoto
(Universal Plan Co., Ltd.)
High Density Negative Ion Generator - Medical Ion Mini
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Contents of: Theory (Negative ion & Tourmaline)
· Negative Ion Generators
· Ion Counter
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· Tourmaline Stones Powder
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Lenard effect (2)
Negative ion counter comparison chart (2)
Corporate customers (15)
Users Testimonials
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