One nurse I know asked that the two sides of the mask be different fabrics/colors so they would know which side was outside and possibility contaminated by the patient. I guess they are taking them off and leaving them in the room to reuse when they went back in. She suggested a solid on one side and a print on the other, to make it really easy to remember. Yours are beautiful!
I think this is the best tutorial I have seen yet. Considering the comment above, I think I might find a way to do the side fold overs to indicate which is outside but rethinking it, the inside of the mask is the one with the slit for a liner so it should be a no-brainer! Thanks for sharing this one.