Chad I would point out a few things. As an Asthmatic and a a pre-me when I was born 2.5 months early, I suffer from low pulse oxidation as it stands, usually 87-92, add adult onset asthma ( which is finally going away due to me increasing capacity byt losing weight and riding ) to that and there is a REAL issue with the mask, the rescue inhaler argument is not good either, as those all ,yes create a dilation in the in the lungs creating more air storage, however, many also cause blood pressure spike as well as increased Heart rates. With a lower amount of Lung development as a pre-me we are more susceptible to repiratory issues, not to mention that I have had pneumonia. The problem is most mask do not allow for the free flow of fresh oxygen or filtration which will cause a build up in CO2 which can cause a whole host of other issues including headaches, confusion, heart rate increase arrhythmia, as the oxygenation of the blood is not happening.
Are masks good for some, YES. Are they bad for other YES Masks should be worn for a limited time 5-15 minutes max IMHO and according to my Pulmonary Dr. I should not even wear one as it opens me up for actually more infection. I do wear one at the store for a quick run in, and at the shop if my client requests, but have to take breaks every 5-10 mins. If I wore one for 8 hours in the shop. Corona would be the least of my problems. Like anything Else regarding this, different procedures and variables are needed. there is not one Golden Procedure. IMHO this virus is here for good and we need to adapt accordingly, however not make a whole other health issue. Just my opinion