I know some masks are next to useless in blocking the virus; but I'm not sure which one is the most appropriate. Many types of masks are sold out. I want one to wear one when shopping in a supermarket. Thanks.
That blocks 99%. I dare anyone without training to wear that for more than 30 minutes. Sure it’s a good level, but strictly speaking not necessary for the ordinary user and the size of this virus.the ‘ideal’ is FFP3 for which you would have had the fit checked for no leakage - getting a fit check is not really a possibility for most people, although it is worth highlighting that when i see people wearing masks (of whatever type) the vast majority are simply not worn properly with gaping holes everywhere.
Fundamentally, unless you are in full PPE (which isn’t going to happen) - it is all about risk management, and reducing your risk as best you can. If you want to wear a mask, get the best mask that you can (P3 hard to get hold of) (or simply just stay away from everyone else as best your can) and make sure it is well adapted. Most importantly, wipe any trolley or basket, don’t touch your face and wash your hands. Gloves may also be helpful, but again, I see many people using them wrongly, I.e. wearing a pair of gloves and then acting just the same - touching everything.
Whilst there is some secondary truth in that, the generalisation is simply not true. So many of those mask don't do anything at all, that provides a false sense of security. And then they are worn wrongly with gaping holes everywhere making them totally pointless and cause people to fiddle with them and thus actually increase the touching.Any mask is better than none . Anything that stops you touching your mouth or nose has to have some effect. The big mistake the eu and USA are making is not wearing them. You only have to look at japan, China and South Korea to see their effectiveness.
George Gao, head of the Chinese Center for Disease Control and Prevention, offers insights from the frontwww.sciencemag.org
Hmm, that is the thing though. When it goes straight through, if anything better than nothing other than being a placebo and perhaps make the wearer feel a bit better? I think it is a false sense of security and as such dangerous.Although as others have said anything is better than nothing
If you have the correct mask, fit it well, then I would wear it when interacting with people. Like doing your shopping on an essential journey.I'm getting mixed messages here.
Should I wear a mask or not?
They can be unhygenic if not changed regularly. They can give a false sense of security. Could encourage panic, might even mean shortages for those who really need them. You are supposed to wear them once only. Do we have enough, literally millions?I agree it's very hard to get a mask to block 100% of viruses, but any mask is better than nothing.
If you are in close contact then they can have a use. Why are you in close contact with others?That's been proven by many studies...hence why they wear them. The widespread use of masks in countries like South Korea is one reason why they've been able to contain the spread of viral infections like SARS etc. better than western countries.
Actually FFP2 is effective. The size of a coronavirus moves with a Brownian motion and does get stopped by those.The FFP2 DIY masks for sanding or laying loft insulation have a better fit than surgical face masks but not as effective in filtration of small virus sized particles.
The surgical face masks are more effective with filtration of small virus sized particles but don't have as close a fit.
The best option if you have both is to wear both at the same time. FFP2 on the face and the mask covering it. Breathing through both would be harder but for a limited time of wearing, say for a supermarket shop would be OK.
I'd fully agree that was the reason why the western public was advised masks are useless in direct contrast to the asian countries which used masks and have seen much lower infection ratesFeel free to disagree, but I do feel that initially the plan was, and still might be a little to avoid the public mass buying masks, when they are/were needed by the health service.
Especially when distances of up to 27 feet are now being mentioned....My feeling on if they work or not is that I agree that, if you maintain 2m or ideally more between people then, probably they are not needed.
However, if you have no choice but to get a LOT nearer people, perhaps a tube train, a bus on in the workplace, then, a face mask will without any doubt in my mind offer you more protection than not wearing one.
Anything that stops any percentage of liquid! from someone else's mouth/nose transferring into your lungs is a positive, even if it's not 100%
It's no good saying "if you keep 2m away you don't need one" is a worthless statement is that's not possible,