一、忌门窗紧闭冬天天气寒冷,人们总是喜欢把窗户关得严严的。而室内人们在活动过程中,汗液的蒸发,新陈代谢废物的排泄,炉灶的烟尘,都可以使室内空气混浊,容易引起呼吸道疾病。因此,在控制室内温度的同时,应注意室内空气流通。晴朗天气应打开门窗通风,保持空气新鲜。二、忌蒙头睡觉蒙头睡眠,被窝里的空气不流通,反复呼吸使得局部二氧化碳浓度增高,氧气稀少。在这 First, avoid doors and windows closed Winter cold weather, people always like to close the window was strict. The indoor people in the activities of the process, the sweat evaporation, the excretion of metabolic waste, stove smoke, can make the indoor air cloudy, easily lead to respiratory diseases. Therefore, while controlling the indoor temperature, attention should be paid to indoor air circulation. Sunny weather should open the doors and windows ventilation, keep the air fresh. Second, avoid Mengmeitunmengmeng sleep, the air in the bed is not circulated, repeated breathing makes the local carbon dioxide concentration increased, oxygen scarce. At this