This will be my second purchase of these. Of the six people in my family, one child has COVID. My son, who wears these to school, and my husband who wears these to work, have just as much exposure as my daughter, but they haven’t caught it my two younger kiddos just finished their vaccine doses last month, so hopefully that’s why they didn’t catch it. Anecdotal experience, yes. But, I wanted to share my experience to help anyone who may be on the fence. They’re comfy, lightweight, and easily adjustable.