Abstract
Indoor thermal comfort is a very important study. Uncomfortable indoor environments can have an impact
on the physical and mental health of the occupants. Comfort temperature varies by three main factors: climate, air
conditioning mode MM mode (including heating (HT) free-Running (FR)), and cooling (CL) and clothing insulation.
This experiment is being conducted in many places in Japan, and this paper focuses on analyzing the Comfortable
Temperatures in three offices located in Osaka. From April 2022 through May 2023, Comfort temperatures were
analyzed during the survey by measuring the Thermal environment and collecting questionnaires. The most suitable Comfort Temperature and Relative humidity range is 23-28℃ and 40-80%. And the amount of clothing range is 0.3-1. 3clo.Different air conditioner operating modes and climates can have an impact on comfort temperatures.