When this Wolf Granny costume first arrived, the inside of the mask smelled strongly of chemicals, my husband and I were worried he'd get high off the chemical scent.  I turned the mask inside-out and left it out to air for a couple days.  The smell went away, and the mask worked out great.

For our Church party, we weren't supposed to wear masks, so we set the mask on top of my husband's head.  That worked out great; you could still tell what he was but he had the benefit of getting to talk and eat too!

Would have preferred if the costume covered the neck and legs a bit more, but over all we liked it a lot and we got many compliments (he as Big Bad wolf, and me as Red Riding Hood).