3M7503 3M, 3M7503 Datasheet - Page 13

• Manufacturer Part Number: 3M7503
• Description: 3M7503 HALF MASK (LARGE)
• Manufacturer: 3M

Specifications of 3M7503

• Safety Category: CSA Standard Z180.1
• Respirator Type: Valved
• Face Mask Style: Half Mask
• Lead Free Status / RoHS Status: na

Fig. 13
Donning (Drop Down Suspension)
1. Adjust head cradle size as needed to fit comfortably on head.
2. While holding head harness strap ends with one hand, slide the facepiece up onto your face.
3. Adjust strap tension by pulling strap ends until a secure fit is obtained. Balance strap tension by
If you cannot achieve a proper seal, do not enter contaminated area. See your supervisor.
User Seal Checks
Always check the seal of the respirator on your face before entering a contaminated area.
Positive Pressure User Seal Check
1. Cover the opening in exhalation valve cover with hand and exhale gently. (Fig. 14) If facepiece
2. If faceseal air leakage is detected, reposition respirator on your face and/or readjust tension of
If you cannot achieve a proper seal, do not enter contaminated area. See your supervisor.
(Fig. 12)
Next grasp strap ends with each hand and hook them together at back of neck.
adjusting at top and bottom strap buckles. Do not over tighten. (Strap tension may be
decreased by pushing out on back side of buckles.) Perform user seal check as described.
bulges slightly and no air leaks are detected between your face and facepiece, a proper seal has
been obtained.
the elastic straps to eliminate leakage.
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