I have been working on my mask system for awhile. This is a KN95 with the straps pulled off with a handmade cotton facemask cover. It holds the KN95 on my face and the KN95 helps me to breathe. Plus the KN95 actually protects me from other people. I couldn't stand how the cotton masks got sucked into my nose and mouth and that made breathing difficult. So the structure of the KN95 helps a lot. The KN95s also don't have the best straps and they fall off easily. But I don't need the straps with my cotton facemask cover.