Full face mask, 3M serie 6000. Available in three sizes: 3M 6700: small; 3M 6800: medium; 3M 6900: large. Extremely lightweight 450gms. Wide field of vision. Polycarbonate lens is scratch and impact resistant to EN166:B. Cost effective. Soft, hypo-allergenic elastomeric face piece. Twin filter design provides lower breathing resistance. Four strap suspension, easy to put on and take off. Speech transmission zone. Unique 3M bayonet filter fixing system