Masks have become everyone's daily standard.
About masks
There have been many rumors.
Some of them are very outrageous.
draw
Next, let's take stock together.
These rumors about masks!
Wearing a mask doesn't feel blocked.
Friends who feel this way are probably wearing the wrong mask ... after wearing the mask, they still feel smooth breathing. Check whether the metal nose clip on the bridge of the nose has been pressed to fit the bridge of the nose and whether there is air leakage at the chin. If you wear a mask correctly, you should feel a little blocked when breathing. If wearing a mask and breathing glasses fogs in winter, it also means that the bridge of the nose is probably not adjusted well.
Do masks and cotton swabs contain graphene, which is harmful to health?
At present, the so-called "graphene masks" sold in the market are mostly gimmicks, such as a "biomass graphene" raw material, which has been verified to be processed from straw. It is worth noting that some mask materials use nano-scale activated carbon, and wearing activated carbon masks for a long time does have the risk of inhaling particulate matter. The public should choose protective masks that meet the national standards for daily epidemic prevention. As for cotton swabs, adding graphene or activated carbon is even more nonsense.
The higher the mask protection level, the better?
Not necessarily. In fact, ordinary people don't have to wear masks of N95 or above in their daily life.
The masks we wear every day, the first choice is common medical masks, such as N95 or masks with higher filtering performance, which are more suitable for professionals in high-risk environments. Ordinary people who wear N95 masks for a long time are prone to discomfort. In addition, people who are prone to poor breathing, such as smokers, emphysema patients and obese people, wearing N95 masks will make the situation worse and even aggravate their breathing problems.
In addition, like some patients with lung diseases, such as pulmonary fibrosis, wearing a mask may indeed affect blood oxygen, but such patients, infected with COVID-19, are more likely to have critical symptoms, so if they need to move in closed public places, wearing a mask for a short time will do more harm than good.
In fact, we ordinary people only need to identify the implementation standards for daily use of masks. For example, medical surgical masks correspond to YY 0469-2011; Disposable medical masks are YY/T0969-20 13, and disposable protective masks are GB/T 326 10-20 16, which are "national standards". In addition, children's masks should meet the requirements of GB/T 38880-2020. In addition, when choosing masks of N95, KN95 and above, we should pay attention to avoid choosing models with breathing valves.
Shake the mask before wearing it, or the residue on the mask will cause cancer?
Qualified medical masks do not have this risk. The mask can absorb ethylene oxide for disinfection. Although ethylene oxide is a carcinogen, its toxicity depends on the dose. According to the national standard, the residual ethylene oxide content in the mask is not more than10 μ g/g, and the manufacturer will wait until the residue is qualified after sterilizing the mask. In addition, the residual ethylene oxide will naturally evaporate during the cycle. Therefore, masks that meet the national standards can be used normally, and there is really no need to shake them a few times.
The masks we wear every day, the first choice is common medical masks, such as N95 or masks with higher filtering performance, which are more suitable for professionals in high-risk environments. Ordinary people who wear N95 masks for a long time are prone to discomfort. In addition, people who are prone to poor breathing, such as smokers, emphysema patients and obese people, wearing N95 masks will make the situation worse and even aggravate their breathing problems.
In addition, like some patients with lung diseases, such as pulmonary fibrosis, wearing a mask may indeed affect blood oxygen, but such patients, infected with COVID-19, are more likely to have critical symptoms, so if they need to move in closed public places, wearing a mask for a short time will do more harm than good.
Finally, to sum up, it is suggested that ordinary people wear protective masks that meet medical standards or national standards to prevent COVID-19. For healthy people, such masks will not bring risks. Even if the epidemic situation in COVID-19 is repeated, new mutant strains are still emerging one after another. Wearing a mask correctly is still a simple and effective daily protective measure.