Air purifier is very useful
In December 2015, there was a major air pollution process in Northeast China, Beijing, Tianjin, and the surrounding areas.
Experts understand the scientific understanding of the proper use of air purification measures in indoor space. In most cases, family, office or other indoor space can not be despised. Indoor air pollution control and management also put an “anti-fog and haze mask”.
Detergents can significantly improve air quality
“Contemporary, outdoor pollution, even if indoor air purification is completed, 80% of the time in the room is not optimistic,” said Zhang, an associate professor at Tsinghua University.
From November 2014 to January this year, the Department of Electronic Engineering of Tsinghua University and Tsinghua University Building Environment Testing Center jointly conducted an indoor air quality survey in Beijing, which is responsible for the research project. A 110,000-hour indoor data volunteer announced “Data Analysis Report Indoor Air Quality Research”.
During the sampling period, the average PM2.5 (fine particles) concentration in Beijing was 91.5 micrograms/cubic meters, and the average PM2.5 concentration in indoor air was 82.6 micrograms/cubic meters, which was exposed to indoor PM2.5 20 hours a day, showing about 82%, while the 4-hour outdoor PM2.5 exposure was about 18% per day. It’s outside.
According to reports, the distance between the main roads affects the air of indoor roads, “more than 500 meters” and “100 to 500 meters” from the main roads “less than 100 meters”. Slow downward trend
In addition, it is reported that there is a certain correlation between the floor of the living room and the concentration of pollutants, and during the sampling period, the lowest indoor concentration is indicated on all 17 floors above the outdoor concentration interval. Direct description. 0-200 micrograms/cubic meters, the concentration of inner layer 1-8 is higher; the concentration of indoor layer 9-16 is in the range of 200-400 micrograms/cubic meters.
The correlation between floor indoor air quality is very complex. This season is related to the wind between floors, but in the conclusion of more stringent causality, we hope to continue to expand the sample size. It is too early to draw a conclusion. ”
Distance, highway, floor and air quality are obvious factors. The report shows whether an outdoor air purifier has a significant impact on air quality. The indoor and indoor value of the outdoor air purifier plays an important role in the promotion, and always maintains at about 15 micrograms/cubic meters.
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