This is a game changing PPE accessory. It makes wearing a face mask much more comfortable. Breath better with this insert while it holds up the mask fabric around the mouth to create more breathing space. It reduces the friction between the mask and the face to protect the lining from getting stained. It protects your perfect makeup from being messed up. It reduces fog from eyeglasses and it washable & reusable. It's suitable for kids and adults, and most kinds of masks.