Reusable Protection Mask (3 Layers) w / Visor - Washable USE Protection from possible environmental transmissions RAW MATERIAL 2 Layers - Fabric 100% Weights 95g / m2 1 Layer - Non-woven 100% Pes 73g / m2 DESCRIPTION - Pleated style (3 pleats) - With ear elastics - With nose adjustment - Three-layer protective structure - Antibacterial finish Face masks help prevent particles expelled by the user (eg saliva, mucus) from reaching the patient, the patient or the work environment and help protect the user from exposure to the patient's blood and / or body fluids or the environment of work. INSTRUCTIONS FOR USE for use in an operating room: Before the first use, the piece must be washed and sterilized. Simple washing at 40ºC and drum drying. Steam sterilization at a maximum temperature of 134ºC for 3 minutes.