On January 31, the Red Cross Society of Hubei Province issued a correction statement on the reception and use of "36000 N95 masks", which mentioned that on January 26, 2020, a caring enterprise donated 36000 KN95 masks to the Red Cross Society of Hubei Province. It was learned from the health department that this type of product could not be used for the protection of first-line medical staff in the designated hospital of New Coronary Pneumonia, but could be used for general protection. Based on the objective needs of humanitarian emergency and the current situation of materials at that time, 18000 KN95 masks were donated to Wuhan Ren'ai Hospital.

Many caring people and people do not know about different types of masks. On January 25, the Union Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology released the Reply to Relevant Questions about Union Hospital's Acceptance of Love Donations, which mentioned the difference between medical protective masks, N95 masks and KN95 masks.

It was mentioned in the article that the Union Medical College Hospital is in urgent need of goggles, N95 masks, surgical masks, disposable medical masks, medical caps, protective clothing, surgical gowns, impact goggles, protective masks and various disinfectants.

Some materials shall meet or be higher than the following standards: 1. Medical protective masks: in line with Chinese GB 19083-2010; 2. N95 respirator: NIOSH certification, filtration efficiency of non oily particles ≥ 95%; 3. European N95 mask: European FFP2 standard; 4. KN95 respirator: it meets the mandatory standard of China GB 2626, and the filtration efficiency of non oily particles is ≥ 95%.

Medical staff must use medical protective masks under the following circumstances: 1. Close contact with infected patients; 2. Conduct operations that may produce aerosols, such as sputum suction, intubation, etc; 3. Operation that may cause body fluid splash.

In other cases, you can wear an N95 mask or a KN95 mask. The key to wearing a mask is to fit the face. Do not use a respirator with a respirator. As for surgical masks, they comply with yy0469-2011 medical surgical masks.

As for the specific use of masks, on January 31, the Notice on Issuing the Guidelines for the Protection of People at Different Risk of New Coronavirus Infection and the Guidelines for the Use of Pneumonia Masks for the Prevention of New Coronavirus Infection issued by the Bureau of Disease Control and Prevention of the National Health Commission mentioned that KN95/N95 and above particulate protective masks: their protective effects are better than medical surgical masks and disposable medical masks, and they are recommended for on-site investigation, sampling and testing, It can also be worn by the public in highly crowded places or closed public places.

The specific scenes of wearing KN95/N95 and above particulate protective masks include in densely populated public transport places and vehicles; Do not touch and adjust the mask when entering the living space of isolated persons at home; When investigating suspected and confirmed cases; For environmental cleaning and disinfection personnel and corpse disposal personnel.

In addition, due to the large number of daily contact personnel and the risk of infection, the unit should provide disposable medical masks or surgical masks or KN95/N95 and above particulate protective masks for the public transport drivers, taxi drivers, public place service personnel, armed police, traffic police, security personnel, media reporters, express delivery personnel and other industry personnel. (Reporter Wu Yi)