Protect against Welding Fumes & Nuisance Odour < TLV. Flame Retardant outer media. Stitched Adjustable Double Elastic. Polyurethane nose liner for comfortable fit. Latex Free Braided Textile Elastic- Long Life, Skin Friendly, Does Not Deform in High Temperature. Filter Class-V FFP2-NR-FR. Exhalation Valve-Yes. Elastic Sewed Outside Filter Area- No Leakage, No Puncture on Filter. Unique Adjuster Beads- Gives Snug Fit Yet Relieves Strap Pressure. Outer Flame Retardant Layer- Protection From Welding Sparks.