In order to explore a local heating way that can improve human comfort in the cold environment, the experiment was carried out in a natural ventilation environment in January 2011 with 62 subjects. The experiment has 3 setting conditions, i.e. locally applying the warm airflow to the subjects' neck, waist and calf respectively. Subjective questions including thermal sensation, humidity sensation, air movement sensation and thermal acceptability were investigated during the 30 min experiment. The results show that the local warm airflow can improve human's thermal sensation, but it may make subjects dissatisfied because of dry and strong wind, also subjects may feel unwell and have headache and nausea. Warm airflow applied to subject's neck and waist will result in an obviously uncomfortable feeling. Negative effect is small when the warm airflow is applied to calf. This can be used as a local heating way to improve human comfort efficiently.%为探索一种在低温环境中改善人体舒适性的局部供暖方式,于2011年1月在自然通风环境的实验室进行实验,共有62名受试者.设有3个实验工况,分别对受试者的颈部、腹部和小腿进行局部供暖风,实验持续30 min,受试者按照其主观感受填写调查问卷,包括人体热感觉、湿感觉、气流感、热环境可接受度等.研究结果表明:对局部供暖风可以改善人体的热感觉,但暖风带来的干燥感和过大的气流感可能引起人体对热环境不满意,并且还可能出现头晕恶心等不良反应,其中,对颈部和腹部送风会产生明显的不舒适感；而对小腿送风的负面影响小,可以作为一种改善人体舒适性的局部供暖方式.
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