
Product description is misleading. It says it's made of silicone, but it's not. It's some kind of soft plastic. In the photos it sits slightly on the nose and mouth but in reality it's quite small. It comes with two versions. One has ribs that hook into the folds of the face mask while the other has many slits and is flatter but cannot remain attached to any type of face mask. They added some yellow and blue valves but I don't need them. My main reason for buying it was to make a regular face mask more comfortable. Unfortunately they don't work. Don't waste money.

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