Reusable cloth ones unless required to wear a blue surgical one (our local hospital insists on them). I honestly feel like the surgical ones do LESS to protect people because they're so loose and baggy.
Got the things all over the place, one in side pants pocket, several spares at home, one in the car, one in my jacket, one on the work desk. "Oops forgot to put it on before going to the canteen, good job I have this other one in my pocket"
I have a novelty furry wolf muzzle mask but it's single layer so only really suitable outdoors as a gesture / to put smiles on faces, and stopped using it when I decided it best to stop drawing attention for various reasons