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Small particle size anion, indoor natural forest oxygen bar
2020-03-02Viewed12639second

空气负(氧)离子(Negative air (oxygen) ion,NAI)是带负电荷的单个气体分子和轻离子团的总称。在自然生态系统中,森林和湿地是产生空气负(氧)离子的重要场所。 [1]  在空气净化、城市小气候等方面有调节作用,其浓度水平是城市空气质量评价的指标之一。

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