seems to work
The brackets seem to work although they were purchased more for family then for me.  They are very sturdy while being light weight and soft against your face.  I don't have any problems breathing thru a mask but my sister is claustrophobic and she says these do help her breath easier.  The price was great for the number of brackets you receive.  They wash up easily.  All in all I would purchase them again if necessary.
Rating: 4 stars