Myself and my partner walked out a door of Dublin Airport. We were approached my an Aircoach driver who asked us if we were getting on the the bus. We said we weren't amd were simply getting fresh air. The driver then said to us, "there is no need to be rude". She also lectured a lady for smoking outside, however we did not see any 'no smoking' signs. Shortly after she drove off. Approximately 15minutes as myself and my partner were sitting inside, away from the General public, the bus driver returned. This time she raised her voice at me across the hallway saying that my mask must cover my nose. I replied by saying that the girl I'm sitting next to is my girlfriend and there is nobody else even close to use. My partner asked if she is airport police. She quickly answered yes, but then said that she is airport staff and that it is her job to enforce the rules. She stood there until I pulled my mask up above my nose, and then proceed to walk past an actual airport staff member who had his mask completely down and didn't utter a word to him. Absolutely disgraceful.