温度室内温度以18～20摄氏度为宜。室温过低,老人易着凉、感冒;室温过高容易使人疲惫、精神不振。湿度家庭内最佳湿度应是50%～60%。湿度大使人感到潮湿、气闷;而空气过于干燥,人体会蒸发大量水分,引起皮肤干燥、口干、咽痛等不适,尤其对老年呼吸道感染病人,会因痰不易咳出而加重病情。通风晨起,开窗通气,可排出室内废气,让新鲜空气补充进来,一般居室开窗20～30分钟,室内空气即 Temperature Indoor temperature to 18 ~ 20 degrees Celsius is appropriate. Room temperature is too low, the elderly vulnerable to cold, cold; easy to make people tired at room temperature, lack of energy. Humidity The best humidity in the home should be 50% ~ 60%. Humidity Ambassador people feel damp, stuffy; and the air is too dry, the body will evaporate a lot of water, causing dry skin, dry mouth, sore throat and other discomfort, especially for elderly patients with respiratory tract infection, cough and sputum can not easily aggravate the disease. Ventilation early morning, open the window ventilation, indoor exhaust can be discharged, so that fresh air come in, the general room window 20 to 30 minutes, that is, indoor air