For this new type of coronavirus 3 layer disposable respirators choice, my advice is to buy disposable respirators N953 layer as far as possible, to take air valve at the same time, to protect our health, also Medical Full Body Coverall can decrease wear three layers of disposable respirators oppressed feeling. Pneumoconiosis had employed workers hurt for a long time, is the number of cases rising sharply in recent years, has become the major occupational disease. Recently, developed jointly by many departments of the pneumoconiosis prevention crucial action issued, for pneumoconiosis disease diagnosis, safeguard, carries out the difficult problems such as a number of measures, and put forward by the end of 2020 pneumoconiosis disease prevention and control of target with the crucial task synchronization is complete poverty. Pneumoconiosis is mainly due to the huge threat to workers in the professional activities long-term inhalation of productive dust (dust), and in the lungs were stranded that cause diffuse fibrosis (scarring) of the lung tissue. For pneumoconiosis disease caused by the reason, the relevant departments in the crucial action is put forward to strengthen in the source control, starting from the front-line workers to vertical dust intrusion defense. But employed workers as long as the work in high dust environment, suffer from dust invasion is difficult to avoid and to strengthen prevention must be from the sources of worker individual protection, so choose 3 Ply Disposable Protective Face Mask a dust layer 3 disposable respirators be the most direct and effective way to prevention of pneumoconiosis. Pneumoconiosis disease due to its own characteristics for the dust layer 3 disposable respirators protection grade requirement is high, the national standards of dust layer 3 disposable respirators: GB2626-2006 "prevent particulate respirators self-priming filter type respirator" disposable respirators will be 3 layer is divided into three protection grade, divided into KN90 KN95, KN100, the protection efficiency were 90%, 95%, 99.97%, protection of the most efficient KN100 level dust layer 3 disposable respirators for preventing dust is the most suitable. Pneumoconiosis prevention mainly lies in the dust layer 3 disposable respirators protection grade, but not only this. As a long time to wear protective equipment on the human body, the choice of its material and Antivirus Disposable Mask with CE Certificate size is also very important. At present the dust on market disposable respirators material is divided into three layer, rubber, plastic, silicone material, such as hardness with silica gel is the most close to human skin, wearing the most comfortable. Size at the same time, each person's face is different, so a good layer 3 disposable respirators also points size, choosing a dust layer 3 disposable respirators to choose medium model appropriate mask can effectively improve the efficiency of protection.