Review on 🌬️ TOOVREN Upgraded U Shaped Breathing Insert by Sean Fabacher

This would be exactly what I wanted for my sheet masks if they were longer and had better clips. Cloth masks do not stretch vertically, so they are too small to be used as described. When two are placed diagonally they serve to keep the material away from the nose and mouth, but then the clips are so skewed that they don't hold securely. They seem perfect for disposable masks that stretch vertically. I repurposed them as earplugs. They hold my masks behind my ears so I can hook them into the size adjustment knob on my bike helmet.