Protective period:40-60 min Model No:TZL30YU AN Patented goods:Patent No.:201110126586.2 Certificate:CE,CCC,ISO9001,ISO14001 Name:High Qquality Fire Protection Emergency Escape Mask Functions:Fire Fighting Safety Emergency Color:Yellow Packing:PVC box Material:Stainless Steel Standard:GB21976.7-2012 Show More