My husband won't take his mask off -- even for sex

When I have tried to present him with the science, he says, “Scientists don’t fully understand the virus yet,” or, “I know it probably isn’t necessary, but wearing it doesn’t bother me, so if there’s even a small chance that it can protect us, I’d rather be on the safe side. What’s the harm?” I disagree that there’s no harm. I want to see my beautiful husband’s face again. I want to kiss him on the lips romantically, like we used to, and not through a piece of fabric. (He does not change his mask very often and it is often smelly and soiled.) And I don’t want to feel judged by him for my own behavior, which I consider reasonable.