About Product:Filtering respiratory protective devise for self-rescue from fire (also known as gas mask) is developed and produced according to the national public safety industry standard GA209-199. It has passed the type inspection by the Quality Supervision and Inspection Center of car fire fighting equipment. It is suitable for hotels, travel industry, shopping malls, hospitals, when a fire occurs in public places such as dance halls, protect people's respiratory organs, eyes and head and face skin from harmful gases, smoke, hot air flow, thermal radiation, Mars, etc. It provides an opportunity for people to escape from thick smoke and poison gas.