The moldex smart series ffp2 nr d valved masks are suited to most industrial applications this general purpose mask is strong and durable it has a dura mesh structure for optimum shape retention and durability the activ form seal automatically adjusts to different face shapes and movements reducing the need for multiple mask sizes the ventex valve reduces heat and moisture keeping the mask as cool as possible it is fitted with a strap and clip so you can hang the mask around the neck during b