MSA Air Line Respirators

For more information, call Western Safety Products at 206-264-0808 or email sales@westernsafety.com.

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Pressure Demand Air Line Respirators (Designed to maintain positive facepiece pressure)
These respirators are designed to maintain a slight positive pressure of air inside the facepiece, whether the wearer is inhaling or exhaling. This helps 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 and health (IDLH) 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 / MSHA certified for operation at 65 - 85 psig with 8 to 300 feet of MSA hose.

Ordering Information for Pressure-Demand Respirators (Complete Assemblies)
Includes facepiece, breathing tube, regulator with quick disconnect and web belt
Quick Disconnect Ultra Elite
Facepiece		 Ultravue
Facepiece		 Comfo
Facepiece		 Welders's Comfo
Facepiece
Snap Tite Aluminum 806764 474020 473464 473457
Snap Tine Brass 806768 475220 475212 478724
Snap Tite Stainless Steel 806769 475221 475213 478725
Foster Steel 806766 475218 475210 478722
Foster Brass 806767 475219 475211 478723
Hansen Brass 806771 475223 475215 478727
Hansen Stainless Steel 806770 475222 475214 478726
Duff-Norton Brass 806772 475224 475216 478728

Constant Flow Air Line Respirators (maintains positive pressure in facepiece)
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 preven contaiminants 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 quick disconnect assembly. The Constant Flow Respirator is used in non-ILDH environments. NIOSH / MSHA approved.

Ordering Information for Constant Flow Airline Respirator
Choose facepiece, control valve and quick disconnect assembly. Comes with breathing tube and a web support belt. Optional PVC belt also available.
High Pressure Control Valve (35 - 40 psig inlet pressure for 8 - 300 ft. of hose)
Quick Disconnect Ultra Elite
Facepiece		 Ultravue
Facepiece		 Comfo
Facepiece		 Welder's Comfo
Facepiece
Snap Tite Aluminum 810829 460863 460865 460862
Foster Steel 810831 480464 480466 480600
Duff-Norton Brass 810834 486258 * Special Order * Special Order
CEJN Locking Chrome plated brass 810832 480629 480631 480671
Snap Tite Locking hard-coat anodized aluminum 810833 480633 480635 480672
Low Pressure Control Valve (10 - 15 psig inlet pressure for 8 - 50 ft. of hose)
Quick Disconnect Ultra Elite
Facepiece		 Ultravue
Facepiece		 Comfo
Facepiece		 Welder's Comfo
Facepiece
Snap Tite Aluminum 806775 463300 463302 463281
Foster Steel 806776 480472 480474 480468
Hansen Brass 806779 484836 484837 * Special Order
CEJN Locking chrome plated brass 806777 480637 480639 480645
Snap Tite Locking hard-coat anodized aluminum 806778 480641 480643 480646
* 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 Western Safety Products (206) 264-0808 for more information.

Duo-Twin Respirators (offers increased flexibility and provides for escape)
MSA offers Duo-Twin Respirators in both Constant Flow and Pressure Demand versions. Constant Flow respirators are normally used where an ample air supply is available, such as that provided by an air compressor. Pressure Demand respirators are generally used where only compressed air cylinders are available. MSA Duo-Twin Respirators feature air purifying cartridges, which also protect against a variety of contaminants.

If the air supply should ever fail on the Constant Flow unit, the user is automatically protected by the air purifying cartridge.

This product is popular in the pharmaceutical, chemical, petrochemical and nuclear industries. The unique D / PD switchable exhalation valve, standard on Pressure-Demand models, slso makes these units especially well suited for abatement work. This MSA respirator should not be used in atmospheres containing less than 19.5% oxygen.

NIOSH / MSHA approved and certified.

Ordering Information for Duo-Twin Respirators (Complete Assemblies)
Cartridges must be ordered separately
Constant Flow Duo-Twin Respirator 484087
Pressure-Demand Duo-Twin Respirator 484441
Switchable D / PD Exhalation Valve

Allows the Pressure Demand Duo-Flow and Duo-Twin Respirators to be approved for continuous use while in either the air-line or air purifying mode of operation
Switchable Exhalation Valve for PD Duo-Flo Respirator 486282
Regulator Assemblies

The Pressure-Demand Regulator maintains air flow at a minimum of 1.0 inches of water positive pressure to the facepiece. Flow stops during exhalation when the pressure demand valve opens at approximately 1.5 inches of water positive pressure. The regulator has an integral belt clip, which can easily adjusted along the support belt for comfortable positioning.
Snap Tite Aluminum assembly 481934
Snap Tite Brass assembly 481937
Snap Tite Stainless Steel assembly 481938
Foster Steel assembly 481935
Foster Brass assembly 481936
Hansen Brass assembly 481940
Hansen Stainless Steel assembly 481939
Duff-Norton assembly 481941
CEJN Locking assembly 481943
Snap Tite Locking Aluminum assembly 481944
Complete Air Line Adapter Assemblies

Designed to deliver the required air flow to the facepiece at an inlet pressure range of 35 - 40 psig for hose lengths of 8 to 300 feet. The adapters include an iintegral belt clip and male and female quick disconnect asemblies.
Snap Tite Aluminum assembly 483526
Snap Tite Brass assembly 483530
Snap Tite Stainless Steel assembly 483531
Foster Steel assembly 483528
Foster Brass assembly 483532
Hansen Brass assembly 483529
Hansen Stainless Steel assembly 483533
Duff-Norton assembly 483534
CEJN Locking assembly 483535
Snap Tite Locking Aluminum assembly 483536

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