Redfish
Diamond Member
first of all COPD is not "A" disease, it is a category of diseases including emphysema, lung cancer, bronchitis, and several other lung diseases. Secondly it has many causes, smoking, chemicals, bacteria, viruses, et. al.
the point is that a mask will not prevent it or prevent you from spreading it. Remember the best masks have a .3 micron filter, a virus cell is .0125 microns, it can only be seen using an electron microscope. Cloth masks and bandanas are worthless and in fact may cause lung bacterial infections.
I am sorry that you have just enough education on that topic to be a moron!
everything I said has also been said by OSHA safety experts. Facts are facts, like them or not. But if rebreathing your own CO2 makes you feel safe, by all means do it.