Face mask is not enough, how to use efficiently?
How can ordinary residents make the most of every mask they have when they are in short supply during the epidemic of crest-crest pneumonia? Experts from the Chinese center for disease control and prevention responded at a press conference on the joint prevention and control mechanism of the state council.
Masks are not necessary in some situations
When do I not need to use a mask? Wu zunyou, a leading epidemiologist and researcher at the Chinese center for disease control and prevention, said there was no need to wear a mask at home because a person at home, or someone at home, had never been outside. In the community, there is no need to wear a mask outside if there is no new epidemic in the community.
Feng luzhao, a researcher with the division of infectious disease prevention and control at the Chinese center for disease control and prevention, said there is no need to wear a mask if you are alone, such as staying at home without outsiders, including in a private car, or walking alone outdoors, in a neighborhood, or in a park with few pedestrians.
Response to new crown pneumonia outbreak zone spreading mechanism under the state council recently issued the mask to prevent a new coronavirus infection in different populations to select and use technical guidelines “also mentioned that occupy the home indoor activities, scattered residents, including empty place/venue of children, students, outdoor, and well ventilated workplace workers, belong to low risk exposure workers, these people in the home, well ventilated and personnel density is low also don’t wear masks. Non-surgical masks, such as cotton, activated carbon and sponge masks have a certain protective effect, but also reduce the cough, sneeze and talk produced by the role of droplets spread, depending on the situation.
In some cases the mask can be reused
When can you reuse a mask? According to feng, it depends on the specific situation:
Ordinary residents use disposable masks in places with little risk. They can be reused to ensure that the masks are clean and structurally sound, especially if the inner layer is not contaminated. After each use, they should be kept in a clean, dry and ventilated place in the room.
By means of transportation, access to crowded public places, including entering shopping malls, elevators and meeting rooms, go to general medical institutions (except fever clinics) for medical treatment, you can wear ordinary surgical masks, disposable surgical masks. In this case, keep the mask in a clean, dry, ventilated place at home and reuse it.
Surgical masks are recommended for workers in densely populated areas, including those in industries related to the outbreak, administrators, police, security guards and delivery personnel. In this case, the use time of the mask can be extended appropriately according to the actual situation. Generally speaking, if the mask is not obviously dirty deformation, you can not have to change every four hours, but if the mask is dirty, deformation, damage, odor, need to be replaced in time.
Proper preservation, cleaning and disinfection can improve the use of masks
Can the mask be sterilized with alcohol or microwave oven? Spraying disinfectants, including medical alcohol, can reduce the effectiveness of protection, so it is inappropriate to use alcohol spraying to disinfect masks, feng said. Wu zunyou says, do not advocate to use microwave oven to disinfect a mask.
Proper preservation, cleaning and disinfection can improve the use of masks. If you need to reuse a mask, hang it in a clean, dry, ventilated place, or place it in a clean, breathable paper bag, the guidelines say. Masks should be kept separately, avoid contact with each other, and identify mask users. Medical-standard respirators should not be cleaned or sterilized with disinfectants, heat, etc. The cleaning of the self-suction filter respirator (full or half-sided) and the power supply filter respirator should be carried out according to the instructions. Cotton gauze masks can be cleaned and disinfected, other non-surgical masks according to the instructions.