slight positive pressure of air inside the facepiece, whether the wearer is inhaling or exhaling. This helps to prevent contaminants

from seeping in around the facepiece, even if there should be small breaks in the face-to facepiece seal.

MSA Pressure-Demand Air-Line Respirators are designed to be used in toxic atmospheres not immediately dangerous to life or health

as defined in 42 CFR, Part 84. The respirator is

available with a belt-mounted pressure-demand

regulator with quick-disconnect assembly, web

belt, and either a full facepiece or half-mask

facepiece connected by a flexible breathing

tube. Applications include welding, painting,

and handling certain hazardous materials.

NIOSH certified for operation at 65-85 psig

with 8-300 feet of MSA hose. For more complete

Complete Assemblies

Complete Assemblies

Includes medium Hycar facepiece, breathing tube, regulator with

quick-disconnect, and web belt.

Three sizes of facepieces are available. For belts, MSA Air-Supply Hose and

other accessories, see pages 41–42. For separate quick-disconnect plugs and

sockets, see page 40. See page 28 for typical Pressure Demand Air-Line and

Constant Flow Air-Line Systems setup.

Constant Flow Air-Line Respirators are designed to maintain

a slight positive pressure of air inside the facepiece,

whether the wearer is inhaling or exhaling. This helps to

prevent contaminants from seeping in around the facepiece,

even if there should be small breaks in the face-to-facepiece

seal. The complete respirator assembly is available with

Ultravue or Ultra Elite Full Facepiece, Comfo Half-Mask

Facepiece, or Comfo Welder’s Facepiece; breathing tube;

web support belt; and air-flow control valve with quickdisconnect assembly. The Constant Flow Respirator is used in non-IDLH environments. NIOSH approved. For more

complete information, see Bulletin 0112-38.

Note: Facepieces can also be ordered in silicone instead of Hycar rubber. Three sizes of facepieces are available. For belts, MSA Air-Supply Hose and other accessories, see pages 41–42.

For separate quick-disconnect plugs and sockets, see page 40. See page 39 for typical Pressure Demand Air-Line and Constant Flow Air-Line Systems setup.

† Available by special order only. High-pressure control valves are also available with the following special order quick-disconnects: Snap-Tite brass or stainless steel, Foster brass, and Hansen brass, or stainless steel.

Low-pressure control valves also available with: Snap-Tite brass or stainless steel, Foster brass, Hansen brass, and Duff-Norton brass. Please call your nearest MSA distributor for complete ordering information.