Only one? I double mask that $hit with N95 surgical masks after Lord Fauci told me one wasn't enough. For a while there I stopped showering all together, while I do not want to characterize myself as a hero, it was a serious sacrifice, but thinking of the countless lives I saved gives me a warm and fuzzy feeling inside and makes me realize it was worth it.Dont forget, I put a mask over the shower head and shower drain to be sure Im not part of the problem.