We're talking about cloth masks, not like military grade gas masks man. Idk how you're going to compare those; they're not remotely close to the same thing. That study you include seems to confirm what I was saying about causing people to inhale more of their own CO2 while breathing. We're also not really talking about n95 masks, because that's not what most people were wearing, and the activity and respiratory strain of "surgeons, nurses, and techs" in an air conditioned building isn't relavent to people doing things like hard labor all day.
"Conclusion: Although, significant increase in CO2 concentrations are noted with routinely used face-masks, the levels still remain within the NIOSH limits for short-term use. Therefore, there should not be a concern in their regular day-to-day use for healthcare providers. The clinical implications of elevated CO2 levels with long-term use of face masks needs further studies. Use of PAPR prevents relative hypercapnoea. However, whether PAPR should be advocated for healthcare workers requiring PPE for extended hours needs to evaluated in further studies."
Even in your own study they say they need more testing to see how elevated levels of CO2 mess with people wearing masks for long durations; yet, you say "they've tested it." Why did you post that study? It's not about cloth masks, which are what most people were/are wearing. As far as CO2 goes, your mask captures the CO2 exhaled at the end of your breath, and you breathe in that gaseous waste back in immediately; it's literally just common sense. It's like taking a poop, then some of the poop goes back into your butthole. Like, it really doesn't have anything to do with what we are talking about, and regular breathing isn't what everyone was doing who was forced to wear usually a cloth-based mask:
"...CO2 levels were measured during regular breathing while donning 1) no mask, 2) JustAir® powered air purifying respirator (PAPR), 3) KN95 respirator, and 4) valved-respirator."
Do you "pro-everything covid" guys even take a minute or two to make sense with the own studies you post? Sorry, looks like a fail of an argument on your part. AND...if you're indoors, while there is an aerosolized virus in the air, it doesn't matter how far apart you are or if you're wearing a cloth mask or not. The aerosolized covid virus can float in the air, be circulated through the AC system, and you can breathe it in around the sides your cloth mask. Aerosolized viruses inside of buildings are going to travel very far, especially if you have a lot of people inside, like a doctor's office or a restaurant, whatever. I don't understand what you don't understand.
FYI, the whole reason they went into a bat cave to get the type of covid that they did is because in that bat cave, they noticed aerosolized or air transmission of a coronavirus.....that's specifically why they chose that particular strain to weaponize, and that base, aerosolized coronavirus they found is what sars-cov-2 (covid-19) was modified from. They made that aerosolized, bat cave coronavirus into a gain of function bioweapon by modifying the spike protein to be more likely to infect humans via the ACE-2 receptors, which you have a lot of in your lungs.
. I have an asbestos removal license, along with being medically cleared to wear respirators of all kinds due to the fact of working with oil that may contain PCB’s In underground transformers along with high voltages splices. I’m fully trained from osha and from the company I work for. Wearing masks was a waste, it was another thing to display that virtue. It should have been something that was a choice. Local businesses had to comply as the state would fine them if they didn’t. This was in NY, in other places it could have been different, I can only speak of this state.
