Datasheet

3M
™
Maintenance-Free
Reusable Half Mask
4000+ Series
Product description
The 3M
™
Maintenance-Free Reusable Half Masks
4000+ Series are a range of ready-to-use, maintenance-
free half face masks, designed for effective and
comfortable protection against many gases, vapours and
combination particulate hazards.
Key features
Ŕ Disposable, maintenance-free half mask
Ŕ Twin inhalation valves and large, bonded carbon filters
with permanently attached particulate filters
Ŕ Easy to use as no need for assembly, maintenance or
record keeping
Ŕ Optional overspray guard (400+)
Product range and intended use
The 3M
™
Maintenance-Free Reusable Half Mask
4000+ Series come in a variety of different product
options:
Ŕ 3M
™
4251+ (FFA1P2 R D) provides protection against
organic vapours (good warning properties and b.pt.
> 65°C), up to 10x Workplace Exposure Limit (WEL) or
1000 parts per million (ppm), whichever is lower, and 10x
WEL for particulates
Ŕ 3M
™
4255+ (FFA2P3 R D) provides protection against
organic vapours (good warning properties and b.pt.
> 65°C), up to 10x WEL or 5000 ppm, whichever
is lower and 20 x WEL for particulates
Ŕ 3M
™
4277+ (FFABE1P3 R D) provides protection against
organic vapours (good warning properties and b.pt.
> 65°C), inorganic and acid gases up to 10x WEL or 1000
ppm, whichever is lower and 20x WEL
for particulates
Ŕ 3M
™
4279+ (FFABEK1P3 R D) provides protection against
organic vapours (good warning properties and b.pt.
> 65°C), inorganic and acid gases and ammonia, up to
10x WEL or 1000 ppm, whichever is lower and 20x WEL
for particulates
Technical datasheet
Standards and approval
The 3M
™
Maintenance-Free Reusable Half Mask
4000+ Series meet the performance requirements of the
European Standard EN 405:2001+A1:2009 for valved
filtering half-mask respirators for gases, vapours and
particulate combinations.
The Certificate and Declaration of Conformity available
at the following website www.3m.com\Respiratory\certs
Declaration of conformity (DOC) available from
www.3m.com\Respiratory\certs
Pictured: 3M
™
4251+ (FFA1P2 R D)