The Scan Moulded Valved Mask has been developed to improve the comfort of disposable respirators, whilst maintaining an excellent face fit. The mask's mesh shell helps to support the filter and helps to maintain its shape, preventing collapse onto the face. The mask has a high resistance to clogging for protection against very fine particles, fumes and mist, with an exhalation valve that makes breathing easier. It has an adjustable nose clip, soft foam nosepiece, non-irritating inner face piece and elasticated retaining straps. The mask has passed the optional Dolomite clogging test, giving the user better breathing resistance for longer. Suitable for use with: Brick dust Concrete and plaster Soft and hard wood MDF dust Masonry / concrete dust Metalworking with power tools Loft insulation / fibreglass Mineral fibres Silica. Pack of 2. Scan A12 B1055