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4.4 Respiratory Protection <br />Respiratory protection requirements are described in detail in the ATC Respiratory Protection Program. <br />Basic rules of respiratory usage are listed below: <br />Facial hair that interferes with a satisfactory fit of the mask-to-face seal is not allowed on personnel <br />required to wear respirators. <br />Respirator cartridges should be replaced after approximately 8-hours of continuous or intermittent <br />usage, unless otherwise noted. Cartridges should also be replaced if they become damaged, after the <br />expiration date is exceeded, if vapor smell breakthrough occurs, or if filters become clogged causing <br />resistance to breathing. <br />Contact lenses may be worn when respiratory protection is required, in conjunction with additional eye <br />protection to protect against particles or splashes, provided there is no interference with the respirator <br />seal. <br />Respirators shall be cleaned and disinfected after each day's use or more often, if necessary. <br />Prior to donning, respirators will be inspected for worn or deteriorated parts. Emergency respirators or <br />self-contained devices will be inspected at least once a month and after each use. <br />After donning, personnel should perform a positive and negative user fit-check to determine if a good <br />seal has been achieved. <br />Each employee shall make sure that they have an annual respirator fit test and respiratory protection <br />training. <br />HASP Level III <br />Rev. 01 — June 11,2007 4-4