>> “in with out wearing a mask. 17% oxygen.”
https://twitter.com/MdKnightBabe/status/1275537902009675776
I did a test with a Pulse Oximeter
After 5 minutes in mask (medical grade, but not n95), O2 dropped from 99% down to 97%.
So either the tweeted video is either BS or OSHA standards are overly strict...
Be interesting to see the test duplicated.
:: After 5 minutes in mask (medical grade, but not n95), O2 dropped from 99% down to 97%. ::
I don’t see how this disputes the video’s findings, vis-à-vis the OSHA standard.
Pulse oximeter and the video test are two different test methods and measure different aspects of the same thing.
His measurement is a direct measurement of the oxygen entering the body with and without a mask. It’s a measurement of how much oxygen is available in the atmosphere at the point of entry. We need 19-24ish percentage of the overall air to be O2 in our breathing space. that is what he is measuring.
Pulse oximeters use a different method of clipping to an extremity to measure how much oxygen is getting transported through the body once it is breathed in and not how much is able to enter the body.
Two different measurements that will never be the same. One is a percentage of atmosphere and another is amount of oxygen in the blood.
So either the tweeted video is either BS or OSHA standards are overly strict...
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This isn’t B.S. My friend had lung cancer operation a week after I had 2 heart attacks...
Now when she puts on her mask, her oxygen level goes down to the point of panting...when I put on my mask, due to the heart attacks, my oxygen levels goes down...
I talked to my doctor, told him I wanted to make masks and give them away so every could have a mask, he told me to use a strech type of material, my friend started using one of mine and she is fine with it...so am I and others I have talked to about it...
It’s the material to be able to breathe in that counts...regular material will block the oxygen flow...
That’s a poor path to take. From an OSHA angle, the best avenue would be respirable particle size. Under no circumstances can you use an N95 mask in a workplace setting for working with friable asbestos, or crystalline silica (to name a couple items), and virii are smaller than the size of concern for both those.
Additionally, the masks create an environment which concentrates the virus density if the user has it. An important factor in getting a disease is the innoculative load. If you get a few hundreds or thousands (numbers purely for example) your body may get on top of the infection before it has a chance to really take root and create serious illness. If you get hit with hundreds of millions it will have a leg up on putting your immune system to the test before it figuratively shakes itself out and gets onto a war footing.
The only mask remotely capable of actually preventing facial/respiratory access to the virus is going to be a full face respirator with at minimum HEPA cartridges on it. People that work with emergent disease are almost always in positive pressure supplied air suits.
These things are small, if you can smell a fart while wearing your mask you can get covid through it (and BTW, that’s probably one of the primary transmission means, fecal particles).
I just threw a bunch of MASK Memes up on Twitter, if anyone wants them...
They start in this Tweet, and continue in the replies to it.
https://twitter.com/easystreet4/status/1276717080738324480
~Easy