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M-446 Premium Outer Shroud: A clean cloth or sponge dampened with a mild solution of water
and liquid household soap may be used to gently wipe down the outer surface and the shroud
gasket. Shroud may also be gently hand washed or laundered at low temperature with mild
detergent. Do not use chlorine bleach or fabric conditioners. Washing temperature should not
exceed 104°F (40°C). Thoroughly air dry before storage. Inspect closely before reuse. Dispose of
when worn or damaged.
M-447 Flame Resistant Outer Shroud: This shroud is made from Nomex® IIIA fabric which
is inherently ame resistant. It may be hand washed or laundered in warm water with a mild
detergent. Wash shroud separately from any other fabrics to prevent contamination with lint from
ammable bers. Do not use chlorine bleach or soaps. Soap scum may be ammable and could
adversely affect the thermal protective performance of the material. Thoroughly air dry or dry on
low setting before storage. Inspect closely before reuse. Dispose of when worn or damaged.
M-448 High Durability Outer Shroud: This shroud is made from Cordura® Nylon. It may be
hand washed or laundered at low temperature with mild detergent. Do not use chlorine bleach.
Thoroughly air dry or dry on low setting before storage. Inspect closely before reuse. Dispose of
when worn or damaged.
M-449 Leather Outer Shroud: A soft bristled brush may be used to remove any debris on the outer
surface. Shroud may also be wiped down with a damp cloth. Inspect closely before reuse. Dispose
of when worn or damaged.
• M-444 Inner Collar: Hand wash or launder at low temperature with mild detergent. Washing
temperature should not exceed 104°F (40°C). Do not use chlorine bleach or fabric conditioners.
Thoroughly air dry before storage. Inspect closely before reuse. Dispose of when worn or damaged.
• Breathing Tubes: Breathing tubes may be wiped down with warm soapy water. If liquid enters
the breathing tube, thoroughly dry the tube before storage or reuse by forcing air through the tube
(approximate ow rate of 6 to 15 cfm) for several minutes with the tube hanging vertically.
Storage/Disposal
Store product in a clean area that is protected from contamination, damage, dirt, debris, product
distortion, and direct sunlight. Do not store next to furnaces, ovens, or other sources of high heat. Do not
store outside the recommended storage temperature conditions (see “Specications” section) or above
90% humidity. Dispose of product according to local regulations.
SPECIFICATIONS
Contact 3M Technical Service for additional technical specications (e.g. weight, materials of
construction, etc.).
NOTE: The M-Series Headgear contains no components made from natural rubber latex.
Technical
Airow range 6 to 15 cfm (170 to 425 lpm)
Noise level Less than 80 dBA (excluding external noise)
Operating Temperature Range -10°C to 55°C (14°F to 130°F)
Storage Temperature Range* -30°C to 50°C (-22°F to 122°F)*
*4°C to 35°C (40°F to 95°F) suggested storage temperature range if product will be stored for an
extended period of time before rst use.
Assigned Protection Factors (APF)
Model Number Classication OSHA APF
1
M-100, M-200 and M-300 Series
(M-105, M-107, M-206, M-207, M-305, M-307)
Loose tting facepiece 25
M-400 Series
(M-405, M-407)
Helmet 1000
2
1
In Canada, follow CSA Z94.4 or the requirements of the authority having jurisdiction in your region.
2
3M supports an APF of 1,000 for these hoods, which is consistent with the OSHA APFs dened in 29 CFR
1910.134. Contact 3M for supporting test procedures and data.
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