JAUE2022-079: Analysis of Indoor Ventilation according to CO2 Changes in Single-person Households in University Districts during COVID-19

Abstract

The time spent indoors has increased due to the COVID-19. This means long-term exposure to current indoorair quality. In particular, if the living space is small, and if you stay in a densely-packed single-person households in university districts, there is a high possibility that the polluted air will have a bad influence on the occupants. Therefore, in this study, a study related to ventilation of single-person households in university districts was conducted. As a result of a survey on the perception of ventilation at the time of COVID-19, the average ventilation amount was once a day and the ventilation time a day was less than 30 minutes. However, that 30 minutes of ventilation once a day is not sufficient. In the second experiment that supplemented this, the average ventilation time was analyzed to be 38 minutes. In the third experiment using the derived ventilation time, an appropriate ventilation amount of 0.6 times per hour was derived. The findings in this study can be utilized as fundamental data for improving the indoor air environment of single-person households and able to increase the ventilation satisfaction in studio apartments through further studies in the future.