Views: 12 Author: Site Editor Publish Time: 2020-07-09 Origin: Site
Since the beginning of the global coronavirus pandemic, Americans have been told by the Centers for Disease Control and Prevention not to wear cccccunless they are sick, caring for a sick person who is unable to wear one or working in health care. Now there are big changes to that policy. The Trump administration announced Friday that the CDC is now recommending people consider wearing cloth face coverings in public settings where other social distancing measures are difficult to maintain. There's one big reason for the change: There is increasing evidence that the virus can be spread by presymptomatic and asymptomatic carriers.
The main points are as follows:
Can face coverings prevent the spread of the virus?
Can None-woven Face Mask provide protection?
What about homemade None-woven Face Mask?
The primary benefit of covering your nose and mouth is that you protect others. While there is still much to be learned about the novel coronavirus, it appears that many people who are infected are shedding the virus – through coughs, sneezes and other respiratory droplets – for 48 hours before they start feeling sick. And others who have the virus – up to 25%, according to Centers for Disease Control and Prevention Director Dr. Robert Red field — may never feel symptoms but may still play a role in transmitting it. That's why wearing a mask even if you don't feel sick can be a good idea.
Yes. But only if you use the mask properly and don't touch it with your hands afterward. Those droplets from a cough or sneeze would hit your mask instead of your mouth and nose — good news. But the next step is to take the mask off by the ear bands and either wash or discard it — without touching the front of it.
"That's what I see all the time," says Griffin. "That's why in the studies, None-woven Face Mask fail — people don't use them [correctly]. They touch the front of it. They adjust it. They push it down somehow to get their nose stuck out."
As NPR has previously reported, some research has shown that cotton T-shirt material and tea towels might help block respiratory droplets emitting from sick people — though it's not clear how much protection they provide.
Another study, of health care workers in Vietnam, found that use of cloth None-woven Face Mask resulted in greater infection than either those wearing surgical None-woven Face Mask or a control group, some of whom also wore surgical None-woven Face Mask.
We don't yet know exactly how effective homemade None-woven Face Mask are, but Griffin thinks they're a good idea — he has even taken to wearing one over his N95 respirator. We also have Gas Face Mask, Medical Thermometer, if you want to know more, just click us .