我刚拿到第一台空气测试仪的时候,我做了一个小测试:我去了北京几个地方采样,想看看室内空气是不是比室外空气好。结 […]
分类: Air Pollution
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Is your air conditioner bringing in dirty outside air?
Is your air conditioner bringing in dirty outside air? […]

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Is your air conditioner bringing in dirty outside air? […]