安装等离子空气 等于呼吸新鲜空气

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Ions are charges contained in molecules or atoms. These ions exist in nature. In short, small ions have a survival time between 30 and 300 seconds, but they are very active; and the density of small ions ranges from 900 to 1100 Negative ion...

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Ions are charges contained in molecules or atoms. These ions exist in nature. In short, small ions have a survival time between 30 and 300 seconds, but they are very active; and the density of small ions ranges from 900 to 1100 Negative ion...

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Plasma air purification system...

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