Medical protective masks now everyone wears masks when they go out, especially those workers who are struggling in the front line. They should protect themselves. So why wear medical protective masks? Due to the impact of the epidemic situation, everyone is now wearing masks when they go out, especially those workers struggling in the front line, who want to protect themselves. So why wear medical protective masks?
1. Medical protective mask medical protective mask is suitable for medical staff and related staff to protect respiratory tract infectious diseases transmitted by air. It is a kind of close fitting self-priming filtering medical protective equipment with high protection level. It is especially suitable for patients with respiratory tract infections transmitted by air or near distance through droplets in diagnosis and treatment activities. It can filter the particles in the air and block the droplets, blood, body fluid, secretion droplets, etc. it belongs to disposable products. Medical protective masks can prevent most bacteria, viruses and other pathogens. Who recommends that medical personnel should use protective masks against particles to prevent virus infection in the air of hospitals.  Medical protective masks meet the standard of GB 19083-2003 "technical requirements for medical protective masks". The important technical indicators include filtration efficiency of non oily particles and airflow resistance. The specific indicators are as follows:  1) filtration efficiency: under the condition of air flow rate of (85 ± 2) l / min, the filtration efficiency of sodium chloride aerosol with aerodynamic median diameter of (0.24 ± 0.06) μ m is not less than 95%, that is, it meets N95 (or FFP2) and above. It can block the air borne infectious factors with diameter less than 5 μ m or contact with the infectious factors transmitted by droplets in close contact. 2) Inspiratory resistance: under the above flow conditions, the inspiratory resistance does not exceed 343.2pa (35mmh2o). 3) When the sample is sprayed to the mask under the pressure of 10.9kpa (80mmHg), the inner side of the mask should not show any technical indicators such as penetration. 4) The mask must be equipped with a nose clip, which is made of bendable plastic material with a length of more than 8.5cm. 5) The synthetic blood was sprayed to the mask sample at the pressure of 10.7kpa (80mmHg), and the inner side of the mask should not be penetrated. Usage: 1. Carefully cover the mouth and nose with a mask and fasten it to reduce the gap between the face and the mask as much as possible; 2. Avoid touching the mask when using it - wash your hands with soap and water or alcohol hand cleaner after touching the used mask, for example, to remove or clean the mask; 3. Replace the mask with a new clean and dry mask after getting damp or contaminated with moisture; 4 Do not reuse disposable masks. Disposable masks should be discarded after each use.
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