I believe that many people want to know whether disposable masks can be reused. Today, I will give you an analysis. Many netizens care about whether disposable masks can be reused.
If you don't go out to a place where there are many people, you can leave the mask in the ventilation area to dry after you go home. Keep the mask clean and reuse.
Some netizens asked if you need to spray alcohol disinfectant on the mask for twice.
Spraying disinfectants can reduce the effectiveness of disposable masks.
Can tissue in the mask extend its life?
This is the truth!
Put the paper towel at the mouth of the mask, which can extend the use time of the mask. After the paper towel is replaced, the mask can be used. Previously, the secret recipe was spread in wechat group, and people who could not buy masks wore disposable paper towel masks.
But in fact, this approach is not scientific.
The mask is generally divided into three layers, the outer layer is the impermeable layer, the middle is the fusion jet non-woven fabric filter layer, and the inner layer is the moisture absorption layer. Among them, the intermediate spray layer is a very fine electrostatic filter cloth, which can absorb bacteria and play a protective role. The longer the mask is used, the worse the filtration effect is.
The ordinary sanitary napkin absorbs most of the water vapor from the mouth, which can not replace the filtration of the middle layer. At best, it can make everyone mentally shielded, and the mask is clean, which is of little practical significance.
Nonwoven fabrics are required.
Will the diapers and sanitary towel factories stop production?
Rumors also have been made on the Internet that nonwoven fabrics were expropriated and factories for diapers and sanitary napkins were shut down. There are netizens who have been buying. But in fact, diapers and sanitary napkins use different nonwoven fabrics and masks, so there is no need to worry about supply issues at all.
Respirators with breathing valves are one-way protection.
Recently, the mask with respiratory valve is one-way protection, only protecting the wearer of the mask, and not protecting the surrounding people. But is it really the case?
actually! It's true! It is suggested that the public should not wear masks with breathing valves!
According to the introduction, the national standard gb19083-2010 technical requirements for medical protective masks clearly stipulates that medical protective masks shall not have breathing valves. Therefore, this respirator with respiratory valve does not meet the standard medical protection mask.
At present, the supply of medical protective masks is short of demand. When the
Medical Mask is not enough, we can ask for the next one. Can we choose a respirator with a breathing valve?
To prevent the epidemic, it is recommended that citizens not wear masks with respiratory valves, he said. There is a valve in the breathing valve, which closes when breathing and opens when breathing. The breath of the wearer is not filtered and discharged directly into the surrounding environment.
So the mask with breathing valve is only one-way protection, only for those wearing masks, not for people around them. It is mainly used for industrial dust mask and fog proof (PM2.5) mask, which is not suitable for medical institutions.
Medical surgical masks are preferred.
If the infected person wears a mask with a breathing valve, the people around them are still in danger and have no protective effect. Therefore, medical personnel should not wear such masks. Patients who visit the clinic should not wear such masks. When the medical protective mask is insufficient, the medical surgical mask should be preferred.
Expert tips.
1. Respirator with breathing valve is one-way protection, which only protects the wearer of mask and does not protect the people around.
2. In order to prevent the epidemic, medical personnel, suspected infected persons and ordinary people shall not wear gas masks.
3. When the medical protective mask is insufficient, the medical surgical mask should be used preferentially, rather than the mask with respiratory valve.
Critical moment.
Not only do you have to wear masks, but also masks.
At the same time, stay away from people wearing breathing masks.
July 26, 2021
