早起后。睡觉时室内空间往往比较封闭,经过一整夜的呼吸吐纳,卧室中的空气往往有些糟糕,不但积累了很多二氧化碳,氧气变得十分稀薄,整理被褥时,尘螨、皮屑等细小的污染物还会漂浮在空中。此时,开窗通风尤为重要。但开窗的时间不宜太早,尤其在城市里,早晨6、7点空气中的污染物浓度仍较高,最好等到沉积在地面的污浊空气升空后再开 After getting up early. Sleeping when the interior space is often more closed, after a night of Breathing, the bedroom air is often some bad, not only accumulated a lot of carbon dioxide, oxygen has become very thin, finishing bedding, dust mites, dander and other small pollution Objects will also float in the air. At this point, window ventilation is particularly important. However, the window opening time should not be too early, especially in cities, the concentration of pollutants in the air at 6,7 in the morning is still high, it is best to wait until the dirty air deposited on the ground after the lift off