In general, the thicker and more occlusive the better. The best homemade options are triple layered cloths or clothes with filter inserts which have a bendable nasal bridge and fit snug. Try a few materials. A mask that is so thick that a child pulls it down is not a very good mask, even though it filters well. Chose a mask the child will actually leave on. What is the best possible mask? N-95s (14) … Continue reading Mask Best Practices
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