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Standard Interpretations
#
 1  1998 - 12/23/1998 - Clarification of respirator costs, annual training, and "effective" seal checks.
 2  1987 - 03/20/1987 - Protection provided by powered air-purifying respirators.
 3  1986 - 08/18/1986 - Hair where the mask edges meet the skin is not permitted for wearers of 30 minute positive pressure SCBA respirators.
 4  1985 - 11/26/1985 - Facial hair in the face sealing area is unacceptable.
 5  1984 - 10/11/1984 - Facial hair in the face sealing area is unacceptable.

Regulations (Standards - 29 CFR)
#
 1  1910.134 - Respiratory Protection.
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