Abstract
To survey the indoor particulate matter in a passive low energy consumption residential building in the severe cold area of China, a field study was conducted in Harbin during the winter of 2015~2016. The indoor and outdoor concentrations of PM10 and PM2.5 as well as outdoor air flow rates were tested, and the subjective evaluation on indoor air quality was investigated. The results show that outdoor air flow rate met 30m3/(h•p). The indoor PM2.5 and PM10 mass concentrations decreased with the decrease of outdoor particle concentration. Because of good sealing performance of the envelope, indoor particulate matter is mainly from the outdoor air supplied from the ventilation system and human activity. In the ventilation system of the building, only a coarse air filter was installed in the inlet of outdoor air. Two optimal filter schemes are given to ensure the indoor particle concentration to meet the relevant standards.
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