Soft foam nose seal for added comfort. Mesh shell for more durability and resists collapsing. Adjustable clip strap for simple and quick release. Dolomite clogging tested, gives better breathing resistance and for a longer time period. Easy breathe exhale valve. EN149:2001+A1:2009 FFP3 NR D For Hazard Type: Toxic dusts, fumes and water-based mists. Example: Working with hardwood, glass fibres and plastic (non PVC), metalwork and welding.