3M™ Breathing Tube Cover, 834018, is a flame-retardant breathing tube cover that protects the tube from molten metal, sparks and spatter. It is compatible with most of the 3M™ Adflo™ and 3M™ Versaflo™ breathing tubes and designed for use with 3M™ Adflo™ Powered Air Respirator or 3M™ Versaflo™ Supplied Air Regulator V-500E