My condolences to you. I have suffered immensely and my wife and I were unable to attend her father's funeral. We would have driven the thousand miles or so, but the State her father died in was in a total lock-down at the time. I have never worn a face mask and never will. From the beginning, I knew from my experience being a certified scuba diver that face masks were harmful to anyone wearing them. If one wants to understand the effects of any deleterious gas, they would readily see it better by increasing the atmospheric pressure (atm). At depths of 30 feet the atm is doubled. What is normally not typically problematic above water becomes problematic under increased pressure. Gases under increased pressure accelerates the effects and amplifies it. For example. Nitrogen is normally 78% of the atmosphere. Nitrogen is inhaled in every breath we take and our lungs use zero percent of it and we exhale all of it. With increased pressure, as under water, Nitrogen becomes problematic and is forced into the blood stream. If not properly decompressed, the very serious side effect of the "bends" occur.

Carbon dioxide is far more insidious than Nitrogen under pressure. Normally, the atmosphere is composed of only 0.04% carbon dioxide. Yet, when we exhale, we are breathing out 100 times the amount (4%). As I mentioned before, under increased pressure, the effects of gases are accelerated and amplified. Normally our respiratory system uses a trace amount of carbon dioxide to regulate the red blood cell PH level that is so vital for its oxygen transport to the organs of the body. Any increase of carbon dioxide however acidifies the PH level and causes acidosis. Acidosis is responsible for all cancers.

Wearing a face mask increases carbon dioxide inhalation. There is a sliding scale of effects due to hypercapnia, all of which is bad. Wearing a mask will reduce oxygen intake within a minute to less than 19.5% oxygen. At the same time, carbon dioxide is dramatically increased. Even OSHA has published regulations for 'respirators' (N95 masks) stating they are to be worn for not more than 20 minutes and when oxygen content is not restricted by more than 1.45%. OSHA warns at this point heart damage and organ damage occurs. Under water due to increased pressure, carbon dioxide inhalation is damning. Anyone unfortunate enough to experience this toxicity is not only lucky to be alive, but may have damaged their heart and other organs, including the brain. Scuba divers have higher incidences of heart disease. Could this be from inhaling increased amounts of carbon dioxide? I wonder. Nevertheless, carbon dioxide poisoning is a silent killer that shows its hand years later. The same can be said of all those face mask wearers. They are damaging their heart and other organs. It's just happening at a slower rate.