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Thread: Masks Work.

  1. #1
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    Masks Work.

    Great News piece today on the BBC showing masks restrict the virus-carrying aerosol spray from our mouths and noses.

    Clear slow-motion photography was very reassuring that the sensible ones are doing the right thing both for themselves and others.

    What do you think Prof?

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  4. #2
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    The test was using a MEDICAL mask, which we know works.

    Would like to have seen a similar test done with the ever popular cotton face coverings, which are of course non medical.

  5. #3
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    Quote Originally Posted by *concerned* View Post
    The test was using a MEDICAL mask, which we know works.

    Would like to have seen a similar test done with the ever popular cotton face coverings, which are of course non medical.
    Any facecovering will help impede 'splatter', even a scarf wrapped around the head. But yes, the better the quality of mask, the better it will do the job.

    Btw, I soon discovered that keeping a mask on at this time of year, was beneficial when on the bike. It makes a great substitute for a 'beard', helping keep my face warm and the cold out!
    On Yer Bike!

    www.20splentyforus.co.uk

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    Smile

    Anything that covers the mouth will create some form of barrier for particles to get past and yes, some are much more effective than others. The guy in this footage though did display the breath cutting through the cold air whilst he was talking but once he tried the masks on it was like he was doing a spirometry test!!

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    I don’t think he is overdoing it too much for the sake of illustration , common sense should tell you what you can see here, I don’t think masks help that much at all and as a false sense of security could work against folk.
    Total isolation is the only answer, I am taking the whole thing seriously, some would say too seriously, I will wear a mask happily but I am certain they make no difference at all and only give false hope .

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  10. #7
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    Someone clearly "blowing hard" as the man in the video, his chest gave it away,
    showed you can force through air that is not the point if he had breathed normally then yes he would still put some potentially virus-carrying breath through but it would be severely impaired in its transmission.
    That is all we expect of commonly available masks.

    It is important to consider accumulative viral load when considering the efficacy of masks.

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  12. #8
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    Name:  WhatsApp Image 2020-12-17 at 21.17.23.jpeg
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Size:  35.1 KB

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    Quote Originally Posted by MICK/GILLY View Post
    Total isolation is the only answer, I am taking the whole thing seriously, some would say too seriously, I will wear a mask happily but I am certain they make no difference at all and only give false hope .
    Do you remember the early public information ads on tv back in the days of black and white? One showed a man sneezing loudly into a hanky, with the voice-over saying: 'coughs and sneezes spread diseases - trap you germs in a handkerchief!'

    I'd feel a lot happier wearing a mask, if unexpectedly sneezing in, say, a checkout queue, than if I wore none....Suspect those around me would be a lot happier too. So, imo masks are a good idea.
    On Yer Bike!

    www.20splentyforus.co.uk

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  16. #10
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    Quote Originally Posted by local View Post
    Great News piece today on the BBC showing masks restrict the virus-carrying aerosol spray from our mouths and noses.

    Clear slow-motion photography was very reassuring that the sensible ones are doing the right thing both for themselves and others.

    What do you think Prof?
    It is not what I think, it is what I know. If I am wrong, then I would welcome anyone else's reasoning.

    OK! I have watched several of the BBC videos - each stating clearly that masks may not stop you contracting a virus but that they MAY reduce the odds. The idea of wearing masks is not to prevent the wearer from contracting a disease - it is to protect others from the wearers contagion. Be careful how you read reports Can/May does not prove anything.

    The BBC also reported:
    Adverts by two companies which made false claims about using face masks to prevent the spread of coronavirus have been banned.


    The Advertising Standards Authority (ASA) ruled the claims by Easy Shopping 4 Home Ltd and Novads OU were in breach of its code.


    The adverts were "misleading, irresponsible and likely to cause fear without justifiable reason", it said.


    I have on many occasions, referred people to the manufacturers claims about the masks. That the masks are not suitable for preventing anything smaller than 60 microns passing through. (1 micron is 1 millionth of a metre) The promotions for these masks concentrate on aerosols to show you how they work. Now imagine the head of a sewing pin which is about one millimetre radius. 10,000 viruses will fit on that pin head - you only need one virus to cause contagion. But that gives you an indication of just how tiny a virus is. The size of aerosol droplets is about 60 - 100 microns - so very obviously aerosol droplets will be stopped by a mask for most are much larger than the 60 microns. Most medical masks are three ply - they have three layers of cotton covering, each layer has perforations slightly overlapping the next - but even so the manufacturers cannot produce any medical masks less than 60 micron perforations. The period at the end of the sentence could sit around a thousand virus on it.

    A medical mask is a bit more protective than a fashion mask - but not by much. That is just the mask alone. Look at the people wearing masks - are these masks sealed all round or are there gaps where viruses could get in? Are people covering their noses with the masks? Do people keep fiddling with a loose mask - allowing viruses on their hands to get behind the masks? etc., etc., Viruses can enter the body via the eyes, down to the sinuses and into the throat.

    OK! Now how does a virus move from place to place? It is airborne. Air particles are the same size as aerosol particles, 60 um - 100um. Air travels in vortexes. The particles of air rise when the surroundings are warm and dry, and fall when wet and cold. The draught from a door opening or closing can change the path of air particles to a greater distance than 2 metres. Air conditioning in a closed food area will circulate all the air in the room - negating a two metre distance.

    Coronavirus type contagions favour colder humid conditions. When it is warm and humid, the moisture in the air makes one feel cooler. When it is cold and humid the moisture makes one feel much colder. Moisture trapped on the clothing greatly enhances heat loss. That moisture also traps viruses on your clothing, belongings, etc.,

    At this time of the year - the hospitals start to become busier due to the viruses becoming more active during the winter months. If you would check the official NHS admissions during the summer months for coronaviruses you would see a drastic reduction of cases.

  17. #11
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    Quote Originally Posted by The PNP View Post
    Do you remember the early public information ads on tv back in the days of black and white? One showed a man sneezing loudly into a hanky, with the voice-over saying: 'coughs and sneezes spread diseases - trap you germs in a handkerchief!'

    I'd feel a lot happier wearing a mask, if unexpectedly sneezing in, say, a checkout queue, than if I wore none....Suspect those around me would be a lot happier too. So, imo masks are a good idea.
    They didn’t say anything about farts though did they, it is my personal belief that if you smell a fart of a person with a virus then by the very fact that you have smelt it means it has got its molecules into your airways past your nose hair filters and infected you with the said virus of the ill farter and in a couple of days you can look forward to shivering and shatting water. Anyone with kids will know this from the basic sick bug ( norovirus )and how it travels, and may be able to even tell by smell if someone is ill particularly with norovirus I can,, they smell of shite and sick, acid and almonds and the smell seeps from their sweaty skin. I would be interested to know if anyone else / parent has this gift .

    So if you were stood behind
    An old lady of 102 and she did a fart and out it flew
    You breathed it in and it sickened you, late one night in the Tesco queue.
    Just one sniff is all it takes and if you smell it you got it make no mistake.
    Yea I remember the coughs and sneezes infomercial and happily wear a mask today but sneeze into it and we won’t be able to see your head for spray on a cold morning, all the more protection the better but don’t be over confident if you are wearing a mask as the guy in the video was talking normally and still emanating a decent fog and plenty of people breath as heavy as his illustration after running for the bus or walking from the car to the supermarket .
    Also I think if you pass someone and you can smell them or their perfume or their clothes conditioner then you are also at risk and you are too close.

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