this review title is: it is a good idea but needs work and the content is: it is a good idea but there is no real way to keep it in the mask there are these little tabs but they are flimsy and do not really hold onto anything i might modify them and add some velcro or something like that to hold this in place in the mask.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.