Firefighters or disaster relief personnel to use a respirator, the respirator use masks and around the wearer's face and make the wearer respiratory organs, eyes and facial canister or completely isolated anoxic environment, with the outside world has own supply of compressed air source used by the wearer to breathe clean air, breath gas directly discharged into the atmosphere, either respiratory process, the pressure inside the mask were greater than the environment pressure. Positive pressure air breathing apparatus (hereinafter referred to as the breathing apparatus), the respirator is a cylinder bearing of compressed air to air breathing and protection device for the human body. It is mainly used for fire fighting, chemical, petroleum, metallurgy, shipbuilding, mining, laboratory, oil depot, warehouse departments such as emergency rescue, disaster relief, etc. For firefighters or disaster relief personnel in the smoke, toxic gas, dust or anoxic environment safely and effectively for fire fighting, emergency rescue, disaster relief and rescue work. Positive pressure air breathing apparatus (hereinafter referred to as the breathing apparatus), the respirator is a cylinder bearing of compressed air to air breathing and protection device for the human body. It is mainly used for fire fighting, chemical, petroleum, metallurgy, shipbuilding, mining, laboratory, oil depot, warehouse departments such as emergency rescue, disaster relief, etc. For firefighters or disaster relief personnel in the smoke, toxic gas, dust or anoxic environment safely and effectively for fire fighting, emergency rescue, disaster relief and rescue work. Category Instructions Fill the gas Air Total weight 9Kg(not including the air) Relevant certification By China national quality supervision and inspection center of fire-fighting equipment certification Air Bottle Material Carbon fiber composite materials (carbon fiber winding type) Content of the product 6.8L Rated working pressure 30MPa Hydrostatic test pressure 45MPa Cylinder weight About 4 kg (except the valve weight) Product standards Q/KJ015-2002 "all fiber winding cylinder aluminum tank"