@kate2025 I stopped because the paper towels kept slipping off. I think it's low risk because it's under a cabinet and on different wall than sink. Putting a clean kitchen towel over it would also work and is easy.

I think it's confusing because there are several options that work. I keep tweaking what I do. Jennifer Honda from National Jewish just did a class on coping with environment that might help. https://m.youtube.com/watch