I bought this mask for my daughter to use in school. I like it that it's comfortable unlike the cloth mask. So, this product exceeds my expectations. I'm very picky when looking for a mask as I'm a frontline worker. The only issue I found is that the string is too loose for little kids. This fits between 4-7 y/o IMO. I still have to make a knot on the string for my 5y/o. I would have give a 5 star rating if it wasn't for the string. But other than that, it is highly recommended & will buy it again next time.