![]() ![]() CO2 was effective in providing natural ventilation. ![]() The operation of the household ventilation device reduced the concentration of fine dust, but it was more than 10 times the concentration standard of fine dust. Contaminants that could not be removed from the kitchen range hood were stacked on the upper part of the kitchen and diffused along the ceiling. Using open-source hardware sensors and ESP-NOW's N:1 communication, the generation and spread of kitchen pollutants and changes in the bathroom wetting environment were analyzed. The purpose of this study was to examine the problems of the ventilation system by measuring and observing changes in the indoor air quality according to the type of ventilation system used by residents of apartment houses. This is a series of studies to develop an integrated ventilation system algorithm aimed at improving indoor air quality in apartment houses.
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