问:冬季天寒地冻,不开窗通风,怕空气不好有害健康;开窗通风,又怕冷空气进来给吹病了。开窗通气时应该注意些什么呢?答:冬天空气干燥,微生物繁殖和传播速度加快,人体呼吸系统的抵抗力降低,更容易引发呼吸道疾病。开窗通风时,应注意次数、时间、环境和室内人员情况。第一,最好在每天的早、中、晚开窗通风3次。 Q: winter cold, not open ventilation, fear of bad air is harmful to health; window ventilation, afraid of cold air coming in to the blowing disease. What should I pay attention to when opening the window? A: In winter, the air is dry, the speed of propagation and propagation of microorganisms is accelerated, the resistance of the human respiratory system is reduced, and respiratory diseases are more likely to be caused. Window ventilation, attention should be paid to the number of times, the environment and indoor personnel. First, it is best to ventilate the windows three times in the morning, middle and late every day.