Field Survey of Air Conditioner Temperature Settings in Hot, Humid Climate, and proposal of an air-tight house

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A questionnaire survey on the use of air conditioners was carried out in houses in Surabaya, Indonesia, and Kuala Lumpur, Malaysia, to clarify what temperature and humidity levels people in these regions prefer in order to feel comfortable, with special focus on their sleeping environment. This was determined through survey responses and by measuring the thermal environments in their bedrooms. The survey results show that the respondents set their air conditioners at very low temperatures. They also show that more than half of the respondents reported a cold or cool thermal sensation while using the air conditioner. Many respondents also reported various health problems and feeling cold while they were sleeping.