1n recent days, PM2.5 pollution index of many places in China has seriously exceeded the standard. For a time, masks have become a necessity for many people to travel. Experts said that the mask has a positive effect on blocking pollutants, but we should avoid the misunderstanding of “blindly seeking expensive”
Guo Xinbiao, Professor of School of public health, Department of medicine of Peking University, said in an interview with reporters on the 27th that air pollution control is a long-term process, and pollution control can not be achieved overnight. 1n this process, the public should scientifically understand the harm of haze to health, and take the initiative to take protective measures
Guo Xinbiao said: “now when the air pollution is serious, many people go out and don’t pay attention to wearing masks. 1n fact, wearing masks in outdoor activities is the most convenient and effective way to reduce the damage of air pollution to human body. “
when choosing masks, experts say that expensive ones are not necessarily the choice< Guo Xinbiao said: "now some masks cost 30 or 40 yuan each, and the price is not" people-friendly ". Experiments show that even ordinary gauze handkerchief can block about 30% of the pollutants, and the blocking rate of disposable medical surgical non-woven mask can reach about 80%< According to Guo Xinbiao, fine particles PM2.5 are not the only factor affecting health, and coarse particles can also stimulate the attachment of nasal mucosa and affect health. Ordinary masks will turn black after wearing one day, which means that many pollutants are blocked. We should not blindly believe in expensive masks copyright notice: This article is reproduced from the network media, only represents the author’s point of view, and has nothing to do with this website. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time