NIOSH/MSHA Approved Dual Cartridge Filtration offers superior protection over disposable masks. This mask is molded in super soft silicon rubber, and fits so perfectly you hardly notice it’s there! The upper adjustable elastic straps connect to a unique “cradle” suspension system that fits perfectly to the crown of your head. The lower adjustable elastic straps have a quick clip connector. Getting in and out of this mask is a breeze. Cartridges are ordered separately.