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FITTING THE MASK

Full Facepiece (All types)

Pull out headband straps, especially the “FRONT” or forehead strap, so that its end
is at the buckle, then grip facepiece between thumb and fingers, insert chin well into
the  lower  part  of  facepiece  and  pull  headbands  back  over  head.  To  obtain  a  firm
and comfortable fit against the face at all points, adjust the headbands as follows:
1. See that straps lie flat against head.
2. Tighten lower or “Neck” straps.
3. Tighten the “SIDE” straps. (Do not touch forehead or “FRONT” strap).
4. Place both hands on headband pad and push it towards the neck.
5. Repeat operations 2 and 3.
6. Tighten forehead or “FRONT” strap a few notches if necessary.

Half-Facepiece (Comfo only)

Fit facepiece on nose bridge making sure that you are able to breathe through nose.
Then swing bottom of facepiece into contact with the chin.

When using elastic or rubber headbands, position headbands with longest straps
above the ears and over the crown of the head, and headbands with shortest straps
below the ears and around nape of the neck. When using cradle headband, posi-
tion cradle headband around the crown of the head, and bottom headbands below
the ears and around the nape of the neck.

Then, adjust the straps for a comfortable fit by moving adjustment slides to length-
en or shorten straps. Adjust the straps just snug enough so that no air leaks around
the facepiece. It is not necessary to pull the straps so tight that the the respirator
digs into the face.

TEST FOR TIGHTNESS

The facepiece must be subjected to the following tightness test before each use.
With air-line disconnected, test the apparatus facepiece for tightness by holding the
hands tightly over the inlet(s) of the filter or canister. Inhale gently so that the face-
piece  collapses  slightly  and  hold  the  breath  for  ten  seconds.  The  facepiece  will
remain collapsed while the breath is held providing the assembly is gas tight. If any
leakage is detected around the facial seal, readjust head harness straps and repeat
test until there is no leakage. If other than facial seal leakage is detected, the con-
dition must be investigated and corrected before another test is made. The face-
piece must pass the tightness test before the user should attempt to enter any toxic
atmosphere.

REPLACING FILTER/CANISTER (Air-Purifying Configurations)

The  length  of  time  the  P100  filter  or  canister  will  give  protection  depends  on  the
concentration of the contaminant and the rate of breathing while in the air-purifying
mode of operation. The N95 filter is effective for 8 hours of use (continuous or inter-
mittent). [Service time can be extended by performing an evaluation in the specific

8

TAL 7012 (L) Rev. 2 - 818369

Summary of Contents for Duo-Flo

Page 1: ...r repair call 1 800 MSA 2222 during regular work ing hours This manual including the warnings and cautions inside must be read and followed carefully by all persons who use or maintain this product in...

Page 2: ...L Follow the manufacturer s User Instructions for changing cartridges and or filters M All approved respirators shall be selected fitted used and maintained in accor dance with MSHA OSHA and other ap...

Page 3: ...r is a combination air supplied respirator and air purifying respirator It is approved by NIOSH for use with either a particulate filter or a chin style gas mask canister for respiratory protection ag...

Page 4: ...er to practice switching the valve from one position to the other Respirator Use Limitations The wearer must comply with the following MSA respirator use limitations 1 Maximum Use Concentration Do not...

Page 5: ...sed except for escape Time Use Limitation Canisters with an N95 filter shall be limited to 8 hours of use continuous or inter mittent against particulates Service time can be extended by performing an...

Page 6: ...itative fit test is used a fit factor that is at least 1 000 for a full facepiece respirator and 100 for a half mask respirator shall be obtained before that respira tor is assigned to an individual Q...

Page 7: ...ply section 4 Assemble apparatus as follows a Connect filter cartridge or canister to coupling nut on Duo Flo adapter check valve b Attach breathing tube between Duo Flo adapter tee and facepiece 5 Do...

Page 8: ...y moving adjustment slides to length en or shorten straps Adjust the straps just snug enough so that no air leaks around the facepiece It is not necessary to pull the straps so tight that the the resp...

Page 9: ...l No 7 665 1 Part No 455021 Hose Neoprene 25 ft Brass Model No 7 665 1 Part No 455022 Hose Neoprene 50 ft Brass Model No 7 665 1 Part No 471511 Hose PVC 15 ft Brass Model No 7 664 1 Part No 471512 Hos...

Page 10: ...d then dry None of the metal plastic rubber leather cloth or glass parts will be adversely affected by the cleaning solution Cleaning and Disinfecting at or below 110 F will avoid possible overheating...

Page 11: ...all instructions and warnings per taining to the respirator 2 The respirator and conditions meet the requirements outlined 3 The canister is the proper type for the contaminant or contaminants presen...

Page 12: ...Rev 2 818369 Duo Flo Constant Flow Respirator Assemblies Chin Canister Type FACEPIECE SEE PAGES 17 18 56651 BREATHING TUBE ASS Y ALTERNATE 57156 BREATHING TUBE ASS Y DUO FLOW AIR LINE ADAPTER ASSEMBL...

Page 13: ...5 480031 Snap Tite AL Locking TAL 7012 L Rev 2 818369 13 PLUG SEE PAGE 13 DUST COVER P N FITTING TYPE 486289 SCHRADER FOSTER STEEL 634450 SNAPTITE CEJN 634687 FOSTER BRASS HANSEN SST 634686 HANSEN BRA...

Page 14: ...14 TAL 7012 L Rev 2 818369 Duo Flo Constant Flow Quick Disconnects for Flow Control Devices...

Page 15: ...TAL 7012 L Rev 2 818369 15 FACEPIECE SEE PAGES 17 18 456651 BREATHING TUBE ASS Y 457158 BREATHING TUBE ASS Y ALTERNATE CHIN CARTRIDGE TYPE Duo Flo Constant Flow Respirator Assemblies...

Page 16: ...ket Part No Part No Type 481934 481871 Snap Tite AL 481937 481873 Snap Tite Brass 481938 481874 Snap Tite SST 481935 481870 Foster Steel 481936 481872 Foster Brass 481940 481876 Hansen Brass 481939 48...

Page 17: ...TAL 7012 L Rev 2 818369 17 Duo Flo Pressure Demand Quick Disconnects for Flow Control Devices...

Page 18: ...471224 471225 480251 480252 480253 480254 MEDIUM MODEL 7 203 1 SPEAKING RUBBER DIAPHRAGM NOSECUP PART Black Black Green NUMBER Hycar Silicone Hycar With Less With Less 457126 471209 471212 471213 463...

Page 19: ...IUM MODEL 7 753 1 SPEAKING RUBBER DIAPHRAGM NOSECUP PART Black Black Green NUMBER Hycar Silicone Hycar With Less With Less 484562 484563 484564 484565 484566 484567 484568 484569 484575 484576 484577...

Page 20: ...20 TAL 7012 L Rev 2 818369...

Page 21: ...TAL 7012 L Rev 2 818369 21...

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