Look. I'm the person that borderline hyperventilates in a mask😷! Most make me cough, choke, heavy breathe, and never stay on my face well enough to provide any protection! No they aren't medical grade, but they are so comfortable, easy to breathe in, soft, and they stay put! I highly recommend them! I didn't have any issues with the straps breaking or coming apart as Mentioned in other reviews 🤔 This is my second set in different colors!See full review