I have to wear a mask 10 hours while at work. I found these cheap looped over the ears mask and wear these. They are the only masks I can breath with. Some of the surgical masks drop my oxygen sats into the high 80's. I agree that we are not helping prevent the spread of covid with any of the masks being used. I let my patients remove their masks behind the curtains if they wish. I feel these masks are killing us. I wear mine as loosely as I can get away with. I am sure I will catch covid again. So I still take some elderberry juice everyday and Vitamin C and D. Also oregano oil. I also think we will see a lot of people with cavities on their teeth. The masks make my mouth so dry. As soon as I walk away from my patients I lower my mask for a minute or two before seeing the next one.