Perceived dryness in houses and adverse health effects during winter in Japan

In recent years, as houses have become more insulated and airtight, indoor environments in Japan tended to low-humidity winter, making dryness a problem. The relationship between the perception of indoors low humidity is unclear, though it has been suggested that other environmental factors may influence adverse health effects. It essential clarify association environment human responses related dryness. A questionnaire survey regarding thermal environment, air quality, living resident characteristics, behaviour, health-related symptoms was conducted throughout winter 2022. paper first describes findings this on building sensation, operating patterns humidifiers devices, problems Next, multiple regression analysis used identify influencing impact at various sites.