在新版2004年的ASHRAE Standard 55中，參酌了熱適應模式的研究結果，首度對自然通風熱舒適標準有了新的建議。主要說明自然通風環境的居住者，其室內熱舒適溫度會隨著戶外溫度的增加而上升。為了解長期處於漫熱、潮濕氣候型態的台灣居民，在自然通風環境下的熱適應性。本研究主要以台中縣市內的14所學校共50間教室為調查對象。調查期間由2005年的八月份至次年的一月份。共有1,614位學生參與自然通風熱舒適實驗的進行，其中52%與48%的學生分別來自國中與國小學校。
研究方法以現場實測與問卷調查兩種方式同步進行，總共蒐集到3,754組有效數據。學生認為的中性操作溫度與喜好操作溫度分別為25.6℃與23.1℃。現場實測的中性溫度與ASHRAE Standard 55的最佳溫度相當。學生認為的80%與90%熱接受操作溫度範圍分別為17.8~30.5℃與20.3~28.0℃。研究結果顯示台灣自然通風環境的舒適範圍都較ASHRAE Standard 55的建議標準來的低，反應學生想要有更涼爽的教室環境。
將研究成果用於探討教室以自然通風方式確保熱舒適的可行性，分析結果顯示僅有低於25％的全年戶外溫度沒有落在80%舒適範圍內，顯示利用自然通風確保台灣教室熱舒適有很好的實用性。
According to adaptive model, which has been brought into the current edition of the ASHRAE Standard 55, people in naturally ventilated buildings can be comfortable at higher indoor temperatures as the outdoor air temperature increases. In order to investigate the thermal perception of people in Taiwan to a naturally ventilated indoor environment, a field survey was executed from August 2005 to January 2006. Environmental measurement and subjective questionnaires were performed simultaneously in the field survey. 1,614 volunteers in 14 public schools, located in central Taiwan, participated in this study. A total of 3,754 data sets were collected.
The thermal neutrality occurred at 25.6℃, which the same of the recommendation by ASHRAE Standard 55. The thermal preference occurred at 23.1℃.The comfortable zones for 80% acceptability and 90% acceptability were 17.8~30.5℃ and 20.3~28.0℃, respectively, which both were lower than the criterion of ASHRAE Standard 55. The finding indicated that students want to have cooler indoor environments in Taiwan than that recommended by ASHRAE Standard 55.
A feasible assessment was applied to investigate the probability to achieve comfortable in the naturally ventilated classroom in Taiwan. It was found that only 25% school hours fall out the comfortable zones for 80% acceptability.
