Safety goggles are airtight, have 4 indirect ventilation valves. Goggles are for inside premises work only, guarantees clear view. Can be worn with respiratory protective equipment (respirators and half-masks). Adjustable length due to elasticated headband. Lens is anti-scratch, anti-fog and protects from mechanical dangers. Protection from dust, liquids and steam. Frame is made of PVC, lens – of polycarbonate.