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CONCDIM Corporate Safety Program HSP-2. Respiratory Protection 1• °° Rev. 1 08/23/2018 d. Nodding head up and down (complete movements); e. Talking—ask the subject to read aloud a short passage of text f. Normal breathing. • If at any time during the test the subject detects the banana-like odor of IAA, he/she shall quickly exit from the test chamber and leave the test area to avoid olfactory fatigue. • Upon returning to the selection room, the subject removes the respirator, repeats the odor sensitivity test, selects and dons another respirator, returns to the test chamber, and repeats the rest of the fit test maneuvers listed above. The process continues until a respirator that fits well has been found. The test results should be recorded and kept on file for a minimum of 30 years. A suggested Fit Test Record, Attachment HSP-2.2, is attached for reference and/or use. Other OSHA-approved fit test protocols may be used in lieu of the IAA test. 6.3.3 Fit Test Protocol Using Irritant Smoke (Stannic Chloride) Both positive and negative test should be passed by finding the proper size and brand of respirator before conducting the qualitative fit test procedure using Irritant Smoke. This test should be done by the HSPM or SHSO. The industry standard procedure for the Irritant Smoke test is as follows: • The respirator to be tested shall be equipped with high efficiency particulate air (HEPA) or P100 series filter(s). • Only stannic chloride smoke tubes shall be used for this protocol. • No form of test enclosure or hood for the test subject shall be used. • The smoke can be irritating to the eyes, lungs, and nasal passages. The test conductor shall take precautions to minimize the test subject's exposure to irritant smoke. Sensitivity varies, and certain individuals may respond to a greater degree to irritant smoke. Care shall be taken when performing the sensitivity screening checks that determine whether the test subject can detect irritant smoke to use only the minimum amount of smoke necessary to elicit a response from the test subject. • The fit test shall be performed in an area with adequate ventilation to prevent exposure of the person conducting the fit test or the build-up of irritant smoke in the general atmosphere. • The person to be tested must demonstrate his or her ability to detect a weak concentration of the irritant smoke. The test operator shall break both ends of a ventilation smoke tube containing stannic chloride. The test subject shall be allowed to smell a weak concentration of the irritant smoke before the respirator is donned to become familiar with its irritating properties and to determine if he/she can detect the irritating properties of the smoke. • The person being fit tested shall don the respirator without assistance, and perform the required user seal check(s). a. The test subject shall be instructed to keep his/her eyes closed. b. The test operator shall direct the stream of irritant smoke from the smoke tube toward the face seal area of the test subject, using the low flow pump or the squeeze bulb. The test operator shall begin at least 12 inches from the facepiece and move the smoke stream around the whole perimeter of the mask. The operator shall gradually make two more passes around the perimeter of the mask, moving to within six inches of the respirator. c. If the person being tested has not had an involuntary response and/or detected the irritant smoke, proceed with the test exercises. d. The exercises below shall be performed by the test subject while the respirator seal is being continually challenged by the smoke, directed around the perimeter of the respirator at a distance of six inches. e. Ask the subject to perform the following fit test maneuvers for at least one minute each. (This list of maneuvers should be taped to the inside of the chamber.) o Normal breathing; o Deep breathing; Page 8 of 13