Saetana
My husband is exempt (COPD) but still manages to wear a mask for brief periods if he has to travel on the bus or go in a shop for a few minutes. Masks do NOT affect your breathing - NHS staff would not be able to wear them all day long if that
was the case. I believe that no mask should equal no entry - exempt or not. Too many people are claiming to be exempt when they are not and this needs to be clamped down on stat!
This is easy to say if you don't suffer from breathing issues (and with respect, your husband's are not relevant to your understanding, as you can't feel what he feels).
I have undiagnosed breathing problems, as well as asthma, and I can assure you that wearing a mask does affect my breathing. I don't leave the house other than for medial appointments, but walking from the car park to the relevant room in the hospital with a mask on invariably leaves me unable to breathe within minutes.
As I've said, I don't go out (which is not as easy as those who are going out shopping or for exercise seem to think), and I am lucky enough to be able to get food delivered, so I am no risk to anyone; but I do get fed up with people insisting that others are able to do this or that, when they can't possibly have any idea of what they are experiencing. Even two asthmatics will have different experiences, as asthma is brought on by different triggers.
I am not saying that everyone who claims to be exempt from mask-wearing is necessarily telling the truth, but I really wish people would stop jumping to the conclusion that they are all telling lies.