The NHS (UK Government) will only allow FFP3 Masks to be used by Doctors/Nurses once a patient has a positive swab result. The rest of the time we are to use simple surgical masks only.

Since I work in A&E, I have ended up buying a stash to protect myself - as obviously nobody will have a positive swab result on arrival to A&E. I do feel like we are being guaranteed to be infected with their approach.