Adult -
A non-medical cloth cover
All cover DO NOT include a filter.
INSIDE: 100% Cotton
OUTSIDE: 100% Cotton
DIMENSIONS: 5 1/2" x 7 1/2"

Kid
A non-medical cloth cover.
All cover DO NOT include a filter.
INSIDE: 100% Cotton
OUTSIDE: 100% Polyester
DIMENSIONS: 4" x 6 1/2"