Designed for people on the go with superior fit and feel and filtration. Easy to carry with the pocket case for ultimate portability. Please note that the case is sold separately. Hygenic Storage - Easy to Carry The AirPop pocket mask is designed to work exclusively with the sleek and slim storage case. Simply fold along the dotted lines on the mask and place it into the case for ultimate, Hygenic portability. Easy storage for when you don’t need the mask or when you are on the go. The vent on the top of the case allows any moisture to evaporate naturally between wears, keeping the mask dry and fresh for when you need it.