天气转凉,口罩开始热销。随着市民健康环保意识的增强,对口罩的要求也逐日提升,从普通的棉质口罩,到医用口罩、工业防尘口罩、PM2.5口罩……是否有必要在日常生活中佩戴PM2.5口罩?中国抗菌协会秘书长张迎增说,PM2.5是指大气中直径小于或等于2.5微米的颗粒物,可以被直接进入人体支气管,干扰肺部气体交换,引发包括哮喘、支气管炎和心血管病等方面的疾病。 The weather turned cooler and masks started to sell. With the public’s awareness of health and environmental protection, the masks are also rising daily requirements, from ordinary cotton masks to medical masks, industrial dust masks, PM2.5 masks ... Is it necessary to wear PM2.5 in daily life? Masks Zhang Yingzeng, secretary general of China Antibacterial Association, said that PM2.5 refers to particles in the atmosphere with diameters less than or equal to 2.5 microns that can be directly introduced into the human bronchus and interfere with gas exchange in the lungs, including asthma, bronchitis and cardiovascular diseases Aspects of the disease.