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Home> News> DT-1686 HEPA Filter Negative Oxygen Ion Air Purifier
April 10, 2020

DT-1686 HEPA Filter Negative Oxygen Ion Air Purifier

Negative air (oxygen) ion (NAI) is a general term for single negatively charged gas molecules and hydrogen ion groups. In the natural ecosystem, forests and wetlands are important places for generating negative (oxygen) ions in the air. It has a regulating effect in air purification and urban microclimate, and its concentration level is one of the indicators of urban air quality evaluation.


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home air purifier

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