Replied by Sam (Muami) on 08/01/2025
Please Google there are plenty of information.Replied by Lisa (FL) on 08/02/2025
A pulmonologist in our church treated many cases of pneumonia during Covid, caused by mask wearing. He said it didn't prevent anything, but caused you to breathe in germs. I still see them everywhere, even when people are outside. Not sure what you are using it for, but I would limit it for sure.