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Persons with facial conditions that prevent a proper seal are not allowed to wear a respirator until the condition is corrected Facial conditions that may cause a seal problem include missing dentures, scars, severe acne, etc Contact lenses can be used with air purifying, but not supplied air respirators No individual will enter an area where the use of respiratory protective equipment is required unless the person has been fit tested within the last year Quantitative fit testing will be performed in accordance with accepted fit test procedures defined in HS 170 of the Dames & Moore Health and Safety Policy and Procedures Manual, a copy of which is maintained at the site Records of fit testing will be maintained on site or by the employee's office and/or corporate medical surveillance program Respirator wearers will perform a user seal check each time the respirator is put on For air punfying respirators, the positive user seal check is performed by first removing the exhalation valve cover, then placing the palm over the respirator exhalation valve and exhaling gently The respirator mask should puff out without noticeable Ieakage The negative user seal check is performed by placing the palms over both of the respirator cartridges, inhaling gently, and holding the breath for 10 seconds The respirator mask should remain collapsed on the face without noticeable leakage 8 4 RESPIRATOR USE INSTRUCTIONS Only those employees who have been properly trained and qualified on the specific type of respirator to be worn may use respirators No individual will enter an area where the use of respiratory protective equipment is required unless the person has been trained All employees whose fob assignment requires the use of respirators are given training in accordance with 8 CCR 5144 during initial 40-hour and annual Refresher training for hazardous waste operations Hands-on training on inspecting and donning a respirator, including user seal checks, was also provided at the time of fit testing Retraining is performed annually on each type of respirator worn by the individual In addition, site-specific respirator training is provided during Site Safety Briefings conducted by the SSO Training records are kept in the employee's training file Particulate respirator cartridges should be changed out when the wearer has difficulty breathing through the cartridges Chemical gas or vapor respirator cartridges will be changed out at least daily. The fit of a chemical gas or vapor respirator should be rechecked and the cartridges changed if the wearer detects chemical odor or feels chemical irritation on the skin, both indicators of leakage or cartridge breakthrough Where available, an ESLI (end of service life indicator) will be used on chemical respirator cartridges Cartridges will be ' AMFOREST 21 7 22