The blue type masks that hook over the ears are conventionally used to reduce contaminants from the wearer.
Those masks are indeed primarily worn by Dr's and nurses to increase protection for the patient.
The only occasions when PPE is worn to protect patients from medical staff is when those patients have severe auto-immune deficiency, and could be badly or even fatally infected by someone innocently carrying relatively trivial infections which most of us carry, but do not suffer from.
Yes, old chap, I did point that out. Some posts ago now. Did you miss it?
You should be well aware that until this coronavirus epidemic, very few medical staff wore masks, unless they were in attendance at an operation, or attending a patient in the category I mentioned above.
I attended our local hospital early this year, before the coronavirus thing started, and, apart from the categories above, nobody was wearing a mask.