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taking in a few slow deep breaths. Another (1) Normal breathing. In a normal standing
facepiece shall be selected and retested if the position, without talking, the subject shall
test subject fails the user seal check tests. breathe normally.
9. The test shall not be conducted if there is (2) Deep breathing. In a normal standing posi-
any hair growth between the skin and the tion, the subject shall breathe slowly and
facepiece sealing surface, such as stubble beard deeply, taking caution so as not to hyperventi-
growth, beard, mustache or sideburns which late.
cross the respirator sealing surface. Any type
of apparel which interferes with a satisfactory (3) Turning head side to side. Standing in
fit shall be altered or removed. place, the subject shall slowly turn his/her
head from side to side between the extreme
10. If a test subject exhibits difficulty in breath- positions on each side. The head shall be held
ing during the tests, she or he shall be referred at each extreme momentarily so the subject
to a physician or other licensed health care can inhale at each side.
professional, as appropriate, to determine
whether the test subject can wear a respirator (4) Moving head up and down. Standing in
while performing her or his duties. place, the subject shall slowly move his/her
head up and down. The subject shall be in-
11. If the employee finds the fit of the respira- structed to inhale in the up position (i.e., when
tor unacceptable, the test subject shall be given looking toward the ceiling).
the opportunity to select a different respirator
and to be retested. (5) Talking. The subject shall talk out loud
slowly and loud enough so as to be heard
12. Exercise regimen. Prior to the commence- clearly by the test conductor. The subject can
ment of the fit test, the test subject shall be read from a prepared text such as the Rain-
given a description of the fit test and the test bow Passage, count backward from 100, or re-
subject’s responsibilities during the test proce- cite a memorized poem or song.
dure. The description of the process shall in-
clude a description of the test exercises that the Rainbow Passage
subject will be performing. The respirator to be
tested shall be worn for at least 5 minutes be- When the sunlight strikes raindrops in the
fore the start of the fit test. air, they act like a prism and form a rainbow.
The rainbow is a division of white light into
13. The fit test shall be performed while the many beautiful colors. These take the shape
test subject is wearing any applicable safety of a long round arch, with its path high
equipment that may be worn during actual above, and its two ends apparently beyond
respirator use which could interfere with respi- the horizon. There is, according to legend, a
rator fit. boiling pot of gold at one end. People look,
but no one ever finds it. When a man looks
14. Test Exercises. (a) The following test exer- for something beyond reach, his friends say
cises are to be performed for all fit testing he is looking for the pot of gold at the end of
methods prescribed in this appendix, except the rainbow.
for the CNP method. A separate fit testing ex-
ercise regimen is contained in the CNP proto- (6) Grimace. The test subject shall grimace by
col. The test subject shall perform exercises, in smiling or frowning. (This applies only to
the test environment, in the following manner: QNFT testing; it is not performed for QLFT)
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