Konno A, Terada N, Okamoto Y, Togawa K
ORL J Otorhinolaryngol Relat Spec. 1985;47(1):5-16. doi: 10.1159/000275738.
To elucidate a limit to the efficiency of the upper airway mucosa as an air conditioner, the temperatures of the inspiratory air and mucosa were measured in the cervical trachea. Both of them were affected only minimally by change of atmospheric air temperature during resting nose breathing, but were affected greatly by change of mode of breathing. During hyperventilation through the mouth, when the atmospheric air temperature was 1 degree C, a temperature difference of 9 degrees C was noted between inspiratory air in the cervical trachea and body temperature, together with a mucosal temperature fall by 1.86 +/- 0.61 degree C. Wearing of a mask caused a rise of 3 degrees C in the inspiratory air temperature in the cervical trachea.
为阐明上呼吸道黏膜作为空气调节器的效率极限，在颈段气管测量了吸气空气和黏膜的温度。在静息经鼻呼吸时，二者受大气温度变化的影响极小，但受呼吸方式变化的影响极大。当大气温度为1℃时，经口过度通气期间，颈段气管吸气空气与体温之间的温差为9℃，同时黏膜温度下降1.86±0.61℃。佩戴口罩会使颈段气管吸气空气温度升高3℃。
