B3 - Pressure Demand Air-Line, Half-Mask

MSA Pressure-Demand Respirator with Comfo^® Facepiece

   An air-line respirator with half-mask.  A flexible breathing tube connects the facepiece to the pressure-demand regulator, which is clipped to the unit's web waist belt.
   Users may choose from units featuring either aluminum Snap-tite or steel Foster quick-disconnect fittings.
   The respirator is designed to provide air to the user during inhalation, while maintaining a slight, yet constant, positive pressure inside the facepiece.
   The Comfo facepiece features a ``cradle" headband and is designed to resist chemical attack, temperature extremes and facial oils.  It is available in either hycar rubber or silicone.
   Order MSA air-supply line separately.

See Data Sheet 01-00-05

MSA Pressure-Demand Respirator with Comfo^® Welder's Facepiece

   An air-line respirator with a special half-mask designed to fit under a welding helmet.  The respirator's flexible breathing tube connects the facepiece to an air-flow control valve fitting clipped to a web waist belt.
   Users may choose from units featuring either aluminum Snap-tite or steel Foster quick-disconnect fittings.
   With the Welder's Comfo facepiece, which is made of chemically resistant hycar rubber, the breathing tube is attached to the side.  A 90^o elbow permits the breathing tube to be slung over the shoulder to avoid interference with the worker's headgear.
   This respirator is designed to provide air to the user during inhalation while maintaining a slight, yet constant, positive pressure inside the facepiece.
   Order MSA air-supply line separately.

See Data Sheet 01-00-05