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' 2. Fold the straps back: over the window piece. <br /> 3. Hold the facepiece with one hand and the strap piece <br /> (in front of the window) with the other. <br /> 4. Put your chin in first. Lift the strap piece out <br /> z - <br /> and over your head. <br /> 5. To tighten the straps, use both hands, one on each <br /> 4 side and pull straight back--not out. Tighten side <br /> bottom straps first then top side straps and finally <br /> =� top strap. <br /> 6. Test the fit: <br /> a. Lightly cover the exhalation valve with the palm <br /> of your hand. Exhale. . . if there is a leak , you <br /> will feel the air on your face. <br /> ellb. Cover the cartridge with the palms of your hands. <br /> Again, don 't press too hard. Inhale. . .the face- <br /> piece should collapse against your face. <br /> t <br /> c. If there is a lead- with either test , adjust the <br /> headbands or reposition the facepiece and test <br /> until no leakage is detected. <br /> 8. 1.3 Sanitizing Procedures <br /> s 1 . Remove all cartridges plus seals not affixed to their <br /> seats. . <br /> 2. Remove elastic headbands. <br /> 3. Remove exhalation cover. <br /> 4. Remove speaking diaphragm or speaking diaphragm- <br /> exhalation valve assembly. <br /> S. Remove inhalation valves. <br /> k� 6. Wash facepiece and breathing tube in cleaner/sani- <br /> tizer powder- mixed with warm water , preferably at <br /> 120 to 140 degrees F. Wash components separately <br /> from the facemask, as necessary. Remove heavy <br /> soil from surfaces with a hand brush. <br /> � 7. Remove all parts from the wash water and rinse twice <br /> x in clean warm water. <br /> 8. Air-dry parts in a designated clean area. <br /> 9. Wipe facepieces, valves, and sets with a damp lint-free <br /> cloth to remove any remaining soap or other foreign <br /> materials. <br /> `� - 13 - <br />