防PM2.5口罩现状及发展方向

为了提高全民防雾霾能力，保障人民群众的身体健康，分析了城市大气污染物中损害人体健康的最重要元凶PM2.5的防护需求，当前市场上各种材质和结构防PM2.5口罩的防护水平。在分析结果的基础上，结合颗粒物过滤机理，提出了雾霾天气时普通民众如何正确选择防PM2.5口罩的建议。讨论了目前防PM2.5口罩的过滤效率和泄漏性可参照的检测方法，在此基础上对今后防PM2.5口罩的发展方向进行了展望。

Present situation and developing direction of PM2.5 respirators

In order to improve the civil anti haze ability and guarantee the people's health, the protection requirements of PM2.5, which is the most important cause to damage the human body health in urban air pollutant were analyzed, and the levels of protection by PM2.5 respirators with different materials and structures in the current market were also analyzed. On the basis of the analysis results, and combined with the particle filtering mechanism, the suggestions for people to correctly choose the PM2.5 respirators under haze weather were put forward. The filter efficiency and referenced detection method on inward leakage of PM2.5 respirators were discussed, and the future development direction of PM2.5 respirators was expected.