When returning to work, the household N95 stock is in short supply? Dialogue expert group makes virus defense more efficient

2020-02-18 05:45:00 [Original by Zhongguancun Online] Author: Chen Yimeng | Editor in charge: Zhou Bolin

Some time ago, some media calculated that the total product value of China's masks in 2019, as shown by CCID Consulting, was 10.235 billion yuan, which was about 5 billion masks. Assuming that these masks are in stock, and then assuming that these masks meet the standards for epidemic response, the average number of people in mainland China is 1.405 billion, and each person can only get 3 masks

When returning to work, the household N95 stock is in short supply? Dialogue expert group makes virus defense more efficient The supply of respirators and other preventive products exceeds the demand

According to the absolute ideal situation, the number calculated is still like this. In fact, the number of masks per capita can be imagined. At the current epidemic situation, we are plagued by the contradiction between the scarcity of masks and the need to wear masks when resuming work. How can we prevent viruses more effectively? Today, let's see what solutions or suggestions experts have given.

01 Unable to open source, only throttling hair dryer can make the mask used for many times

Recently, many netizens have asked whether they need to wear more masks when going out? What should I do if I wear it once and then throw it away and use it up quickly? This Wu Zunyou, Chief Epidemiologist of China CDC At the press conference of the joint defense and control mechanism of the State Council, it was said that it was unnecessary to wear seven or eight masks at a time when going out, and ordinary people could meet the demand for one disposable medical mask; There is no need to wear a phone call to drink water and then throw it away immediately. It can be reused.

Yi Zhigang, Associate Researcher of Molecular Virus Laboratory of Shanghai Medical College, Fudan University, demonstrates the hair dryer treatment mask

However, with the increase of the length of time for single wear after returning to work, the space for the reusable masks is becoming smaller and smaller, and the number of masks owned by each person is small. This Molecular Virology Laboratory, Shanghai Medical College, Fudan University A solution of "fresh-keeping bag+hair dryer" is given: put the mask in the fresh-keeping bag flat on the table, fix it with other items, and blow back and forth with the highest temperature gear of the hair dryer. Be careful not to blow at the same position; Keep the mask in a vertical position and handle it for about 30 minutes before it can be used again.

The research team found that this method has no effect on the function of the mask to intercept particles, and can effectively inactivate the virus. This is the team's conclusion after conducting rigorous scientific experiments using ultraviolet and dry heat methods: hair dryer is the most convenient and effective way.

In addition, people do not have to worry about the harmful substances of the fresh-keeping bag will be distributed indoors because the fresh-keeping bag that meets the quality requirements is often heated in the microwave oven and other high temperature environments, far exceeding the temperature of the hair dryer; At the same time, it is not necessary to worry that the high temperature will damage the mask material and make it lose its protective effect. On the contrary, it will only destroy its effectiveness by using hot and humid methods such as cooking and disinfection.

02 In addition to masks, more measures need to be taken when taking public transportation, dining and working

Is sorting out Pang Xinghuo, deputy director of Beijing CDC, and Li Jun, director of the Infectious Diseases Department of Jiangsu Provincial People's Hospital and member of the expert group for the prevention and treatment of COVID-19 of Jiangsu Provincial Health Commission After giving several suggestions, we found that in addition to wearing masks, we also need to do the following during commuting.

Wearing masks is a prerequisite for all other defensive measures

First, make sure you are healthy. Take temperature measurement before going out. If the temperature is abnormal or you feel unwell, you must not go to work with illness. In case of any possible virus like infection among the working population, it is necessary to actively inform others and conduct inspection and testing to avoid becoming a source of infection.

Try to walk, ride or drive a private car to and from work. Know that if there is a patient in the same public environment, all the people you are in the environment are close contacts. When taking public transportation, you should wear a mask all the time to avoid touching the items in the vehicle with your hands; When taking an online taxi, open the window and open the door for ventilation before getting on the bus, remind the driver to wear a mask, and wear a mask yourself. Temperature test is required when arriving at the unit door.

Try to avoid taking the van elevator. It is recommended to select the step ladder at the lower floor; When you must take the elevator, you must wear a mask. When touching the button, you can use a paper towel to separate it; Do not rub your eyes or touch your face; Try not to communicate in the elevator, and try to keep a certain distance from others. Take the disposable disinfectant with you for easy use.

After entering the office area, the office environment shall be ventilated in advance. Clean and wipe the office area, and then wash hands with flowing water or soapy water; During work, you should also wear a mask and try not to leave the post. You can communicate by phone or video. The office area is ventilated three times a day, 20-30 minutes each time.

Do not eat together, try to bring food from home. At present, there have been cases of infectious eating and chatting in the canteen. If you can't take food with you, try to stagger the dining peak in the restaurant and take off the mask at the last moment of sitting down to eat; Avoid eating face to face and try not to talk when eating.

It is not recommended to stay in the company for a long time after work. No dinner or party, try to reduce the contact of people gathering.

Go home and disinfect. Wash your hands and open the window for ventilation before entering the house, place your coat and shoes in the fixed corner of the house, and clean them in time; yes mobile phone , keys, etc; Drink more water, exercise properly, and take a rest.

Hand hygiene is particularly important. We have touched many things with our hands on the other day, and the touch of our hands will increase the chance of virus infection. We must wash our hands before touching the face, especially the mucous membrane of the eyes.

It has been one month since the public realized the seriousness of the epidemic. Because we have stayed at home for too long, we may have less fear of viruses. But the author reminds everyone here that the virus is not far away from us, and there is a large flow of workers, so please do a good job in defense for yourself and others.