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    Route 45

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    Anyone with two brain cells would not put a lit match next to a Kleenex on their face.

    Just sayin....

    If they aren't smart enough to keep a safe distance between the match and the Kleenex, I suppose they need to avoid this experiment so that they will be available to vote for Biden this November.
     

    nonobaddog

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    There is no filter. You can see skin through the mask.

    She said that to try and justify it

    Sent from my Moto Z (2) using Tapatalk

    Maybe they just put the masks on for the photo - in which case the mask doesn't need to be loaded. Or maybe you are seeing the filter and not skin. Or maybe she has really dark skin under the mask area. Or maybe she lied.
     

    nonobaddog

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    I didn't see anything saying that a "medical grade" mask is being used. There's no valve component, so it doesn't look like an N95.

    The N95 is a rating of the filter material used. The N95 masks come with or without the exhale valve. The exhale valve defeats the filtering during exhale which is not what you want to reduce aerosols.
     

    Route 45

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    The N95 is a rating of the filter material used. The N95 masks come with or without the exhale valve. The exhale valve defeats the filtering during exhale which is not what you want to reduce aerosols.

    The ones I've seen have the valve, but I'm sure they make them without. Still, any barrier to airflow will have a degree of effect on the expulsion of virus from someone wearing it vs. someone with no barrier. The virus travels on air currents, unless we have an update that 'Rona has wings now. Restricting airflow will have some effect on amount and trajectory.
     

    nonobaddog

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    This is about Minnesota - the numbers are from yesterday (May 23, 2020).

    Here is some data to demonstrate how our Governors plan to respond to this pandemic is flawed.

    Out of
    19,845 total cases in the state, 1,633 cases are in people aged 80 and over.
    That is 8.2% of all reported cases. Deaths in that group are 522.
    That is a 32%
    case fatality rate and it is 61% of all deaths.

    At the
    other end, there are 5,158 cases in people 29 and under.
    That is 26% of all
    cases.
    There are zero deaths in that entire group.


    697 of
    all deaths are among residents of long term care facilities and assisted living settings.
    697 out of 852 total deaths is 82% of all deaths.

    Here is one way to look at that.
    There are apparently around 80,000 Minnesotans living in these
    settings.
    697 divided by 80,000 is a .87% death rate.
    Within a week, one percent
    of Minnesotans living in these settings will have died.

    There
    are 155 deaths in the whole rest of the population of 5,640,000 Minnesotans.
    That is a .0027% fatality rate. Less than 3 one-thousandths of a percent.

    Minnesotans who don't live in a long-term care or assisted living facility are
    more likely to die from hundreds of other causes.
    Governor Walz original plan was to slow the spread of the virus so we could ramp up our capability to respond, what he called flattening the curve.
    At some point it has
    changed to trying to prevent all Minnesotans from getting Covid-19.
    He’s trying
    to protect healthy people who have little or no risk.
    Instead we should be
    protecting the high risk populations and letting the rest of the population get back to normal safely.

    Florida’s
    Governor who was initially criticized for using this strategy has successfully navigated his state through
    this pandemic with a peak death rate
    half of our current death rate, and their rate is currently dropping.

    Our
    Governor is still predicting our peak to be 18 times greater than our current rate and 32 times greater than Florida’s peak.
    This is the flawed data he’s
    using to make decisions.
    It will potentially take years to recover from the economic devastation that these decisions have had on our economy.

    Governor,
    follow the data, please!
     

    Dutchisaurus

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    Apr 30, 2020
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    The ones I've seen have the valve, but I'm sure they make them without. Still, any barrier to airflow will have a degree of effect on the expulsion of virus from someone wearing it vs. someone with no barrier. The virus travels on air currents, unless we have an update that 'Rona has wings now. Restricting airflow will have some effect on amount and trajectory.
    The Rona is one of those smart bugs. It doesn't attack Walmarts only churches and mom and pops and barbershops

    Sent from my Moto Z (2) using Tapatalk
     

    chipbennett

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    Oct 18, 2014
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    https://smartairfilters.com/en/blog/can-masks-capture-coronavirus/

    Some protection is better than none.
    4-EN.jpg

    Wearing a cotton handkerchief gives you a 28% protection.
    Wearing the surgical mask give you 80%
    Respirators give you 98% to 99% depending on the cartidge.
    So it's all a matter of your risk level.

    What particle size(s)?

    And, are we talking the filter medium itself, or a properly fitted and worn respirator?

    People don't seem to realize that these percentages go right out the window when the PPE is worn incorrectly. Anything that allows airflow anywhere but through the filter medium (whether a cotton handkerchief or an N95 respirator) will see the filter medium efficiency drop to near zero.
     

    chipbennett

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    In her defense (and I hate to defend her), she posted on her Twitter that her mask has a carbon filter. I guess they make them with a pocket for a filter. May even be better than a regular cloth/dust mask.

    So she claims. But even if she has a filter inside of a pouch (sure doesn't look like it; look at those gaping holes - no filter there), that filter isn't going to do ****. The crocheted mask is too ill-fitting.
     

    nonobaddog

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    What particle size(s)?

    They tested particles down to 0.007 microns. It is funny, some people think just because they test these filter materials at 0.3 microns that that represents some kind of cutoff and they don't filter particles any smaller than that. These kinds of filters are called "tortuous path" filters and they filter particles much smaller than 0.3 microns. In this study the filter materials actually performed better against the smaller particles. Using virus particles of various sizes one respirator stopped about 95.5% of 0.05 micron particles and about 98.5% of 0.007 micron particles and this is at the higher flow rate. It did even better at the lower flow rate simulating normal breathing.

    Virus-Penetration-Rate-Mask-Labelled.jpg
     
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