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respirator. No attempt shall be made to replace components or to make adjustment or repairs beyond
the manufacturer’s recommendations. Reducing or admission valves or regulators shall be returned to
the manufacturer or to a trained technician for adjustment or repair.

(5)
(i) After inspection, cleaning, and necessary repair, respirators shall be stored to protect against dust,
sunlight, heat, extreme cold, excessive moisture, or damaging chemicals. Respirators placed at
stations and work areas for emergency use should be quickly accessible at all times and should be
stored in compartments built for the purpose. The compartments should be clearly marked.
Routinely used respirators, such as dust respirators may be placed in plastic bags. Respirators
should not be stored in such places as lockers or tool boxes unless they are in carrying cases or
cartons.

(ii) Respirators should be packed or stored so that the face piece and exhalation valve will rest in a
normal position and function will not be impaired by the elastomer setting in an abnormal
position.

(iii) Instructions for proper storage of emergency respirators, such as gas masks and self-contained
breathing apparatus, are found in “use and care” instructions usually mounted inside the
carrying case lid.

(g) Identification of gas mask canisters.
(1) The primary means of identifying a gas mask canister shall be by means of properly worded
labels. The secondary means of identifying a gas mask canister shall be by a color code.

(2) All who issue or use gas masks falling within the scope of this section shall see that all gas mask
canisters purchased or used by them are properly labeled and colored in accordance with these
requirements before they are placed in service and that the labels and colors are properly maintained
at all times thereafter until the canisters have completely served their purpose.

(3) On each canister shall appear in bold letters the following:

(i)—
Canister for ___________________________________
(Name for atmospheric contaminant)

or

Type N Gas Mask Canister

(ii) In addition, essentially the following wording shall appear beneath the appropriate phrase on
the canister label:

“For respiratory protection in atmospheres containing not more than __________ percent by volume
of ______________________________.“
(Name of atmospheric contaminant)

(4) Canisters having a special high-efficiency filter for protection against radio nuclides and other highly
toxic particulates shall be labeled with a statement of the type and degree of protection afforded by the
filter. The label shall be affixed to the neck end of, or to the gray stripe which is around and near the top

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