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| 本帖最後由 KUROMAX 於 2019-3-12 09:43 PM 編輯
At winter time with windows closed all the time and doors closed most of the time, air in house could get stalled. A thin layer of dust could appear and cover area not frequently used or cleaned, like under the desk. A high efficiency highly effective air filtering device could help to reduce dust and improve health. A humidifier to add some moisture into dry winter air is not only good to reduce static electrical charge but also helpful to prevent dry nose discomfort. ... |
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