Evaluating Thermal Comfort and Environmental Factors Using PMV-PPD Model: A Case Study in a Health Faculty in Yazd, Iran

Background: Thermal comfort is a multifaceted concept that is influenced by environmental factors such as air temperature, mean radiant temperature, air velocity, and relative humidity (RH). These elements significantly affect individual well-being and performance, particularly in office settings. Accordingly, this study investigated thermal comfort within a public health faculty.Methods: This cross-sectional study was conducted in ۲۰۲۳ at a Health Faculty in Yazd, Iran. The study recorded the environmental parameters necessary for calculating the predicted mean vote (PMV) and predicted percentage of dissatisfied (PPD) on November ۱۳th at ۱ p.m. Calculations followed ISO ۷۷۳۰:۲۰۰۵ standards. Statistical analysis was performed using R version ۴.۳.۳, with normality tested via the Shapiro-Wilk test. The Wilcoxon test was used for comparisons between two groups, while the KruskalWallis test was utilized for multiple-group comparisons.Results: The third floor exhibited a consistently higher temperature (۲۴.۱ °C), potentially causing discomfort. Although temperature, humidity, and thermal comfort indices varied across floors and corridors, the lack of statistical significance (P>۰.۰۵) suggests uniform environmental conditions. Most PMV values across floors fell outside the acceptable range (-۱