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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Eric who wrote (1451133)	4/9/2024 1:27:19 PM
From: Qone0	Read Replies (1) \| Respond to of 1570506

Laughing inside of a mask will kill you within 30 seconds. <G> It's true I'm doing a youtube vid on it right now. <G>

To: Eric who wrote (1451133)	4/9/2024 4:36:24 PM
From: maceng2	Respond to of 1570506

<<As you know the volume of air inside the mask is infinitesimal compared to the vital volume of your lungs.>> Eh? If the breathing airflow is normal while wearing mask, it just means the mask is leaking. This means it's useless at stopping bacteria getting into the lungs and "useless squared" at stopping any virus getting into the lungs. A mask might stop a particle being emitted from the lungs and mouth onto a patient from a doctor / nurse in the operating room that seem to be the focus of some discussion here. The chance will still be minimal though. Stephen Petty, OSHA consultant, makes the case clear. If as mask seals, you know, like a respirator, your lungs will have to work harder to pull that air through the filter. That is just gas dynamics, as you should understand. So, yes wearing a mask restricts the airflow into the lungs by definition, unless it is leaking which is the case for all normal surgical masks. A restricted airflow can make a person lightheaded etc as discussed. Now, in my original link, Robin Monotti mentioned CO2 rebreathing that you seem to have also latched onto. Robin Monotti is not a scientist or a technical person, but that does not detract that masks do restrict airflow, and they do incubate bacteria (if you know anything about biology as they are almost a perfect substrate) As Robin Monotti is not a scientist, I expect he doesn't know much about gas diffusion and partial pressures. Normally, on any concentration imbalance, background levels of any gas will equalize as a function of the speed of sound. We are assuming here that a mask seals effectively against a virus, which would have to be a perfect seal. However, an additional consideration is a concentration gradient of CO2 being set up within the body as a CO2 source. That might change things. So I thought it a good idea to have a quick check of the literature. Lots out there. "Fresh air has around 0.04% CO2, while wearing masks more than 5 min bears a possible chronic exposure to carbon dioxide of 1.41% to 3.2% of the inhaled air." Possible toxicity of chronic carbon dioxide exposure associated with face mask use, particularly in pregnant women, children and adolescents – A scoping review - PMC (nih.gov) "Wearing masks can make it hard to breathe.1 How easy it is to breathe can be based on factors such as the tightness of the mask fit or having certain medical conditions." Laughably "tightness of the mask" means "Mask is normally leaking" but we will jump over that fopas for the moment. So lets read on.. *Reduced oxygen* intake may result in hypoxia, when oxygen levels in the blood are low. These low oxygen levels can lead to symptoms such as:2 Blue skin Confusion Headache Increased heart rate Restlessness Face Masks, Oxygen, and Carbon Dioxide: The Facts (health.com) So it looks as if Robin Monotti is spot on with his assessment. I am bit surprised that a diving instructor, and safety expert like yourself Eric, is so flippant with an important factor like proper breathing. You don't seem to have acknowledged anything the OSHA consultant Stephen Petty has said, and you seem to be lacking in general knowledge on the subject of breathing as compared to an ordinary civilian like Robin Monotti. A double whammy! Reading more from the same "health advice" link... This one is just UFB! "Is It Safe To Sleep With a Mask On?" "Even if you want to prevent the spread of germs, wearing a mask during sleep isn't safe. That's primarily because masks can make it more difficult to breathe." Just fancy that ! It would be laughable if it wasn't a damming indictment how clueless people are, and how they will listen to any crapola the government issues without using their own common sense.