4000 Series Gas and
Vapour Respirators
Data Sheet
Approvals
• The 3M 4000 series meet the performance requirements of the
European Standard EN 405 for valved filtering half-mask respirators
for gases, or gases and particulate combinations.
• Are suitable for use under COSHH, CAW, CLAW and IRR.
• The products are CE marked.
Materials
The following materials are used in the production of the product:
• Face piece - Thermoplastic elastomer
• Head harness - Polypropylene/cotton braided elastic
• Plastic components - Polypropylene
• Gas/Vapour filter - Activated carbon
• Particulate filter - Polypropylene
• Exhale valve - Silicone rubber
• Inhale valve - Natural rubber
Product weight: 300g max.
Standards
The products have been tested to European Standard EN 405 and
have met the relevant requirements of the categories shown below.
The main performance tests in this standard are:
• Face Fit
• Flammability
• Breathing Resistance
• Filter Performance
Within the criteria specified in the standard
- The 3M 4251 (FFA1P1) provides protection against organic
vapours, (boiling above 65°C) up to 10 times the Occupational
Exposure Limit (OEL) or 1000 parts per million (ppm), whichever
is lower. 4 times OEL for particulates.*
- The 3M 4255 (FFA2P2SL) provides protection against organic
vapours, (boiling above 65°C) up to 10 times OEL or 5000 ppm,
whichever is lower. 10 times OEL for particulates.*
- The 3M 4277 (FFABE1P2SL) provides protection against
organic vapours, (boiling above 65°C), inorganic and acid gases, up
to 10 times OEL or 1000 ppm, whichever is lower. 10 times OEL
for particulates.*
- The 3M 4279 (FFABEK1P2SL) provides protections against
organic vapours (boiling above 65°), inorganic and acid gases and
ammonia, up to 10 times OEL or 1000 ppm, whichever is lower.
10 times OEL for particulates.*
* Assigned Protection Factors according to (British Standard) BS4275: 1997.
Main features
The 3M 4000 Series is a range of respirators which use innovative
technology to provide integral construction gas and vapour respirators.
The 3M 4000 Series uses twin inhalation valves to reduce breathing
resistance, together with bonded carbon filters, which do not require
granule containers. This is complemented with a parabolic valve which
further reduces breathing resistance whilst preventing heat build-up.
The single piece integral construction also avoids operator assembly
errors and allows a respirator to be designated to a specific
area,
making a respirator programme easier to manage. An hermetically
sealed foilbag is utilised to extend shelf-life and prevent moisture and
other substances contaminating the carbon. An optional overspray
guard is also available to prolong the life of the particulate filter when
using the 3M 4251 or 3M 4255 respirators for paint spraying.
Applications
MODEL
4251/4255
(FFA1P1/
(FFA2P2SL)
HAZARD
Organic
Vapours
and
Particulates
INDUSTRY
- Anywhere conventional paints are
used (subject to usage conditions).
- Vehicle manufacture
- Plant equipment manufacture
- Shoe treatment and tanneries
- Domestic appliance manufacture
- Aircraft manufacture and
refurbishment
- Boat building
- Machinery manufacture
- Chemical manufacture and handling
- Ink and dye manufacture and usage
- Adhesive manufacture and
laboratories
- Paint and varnish manufacture
- Manufacture and use of resins
4277
(FFABE1
P2SL)
Organic
Vapours,
Inorganic
Gases,
Acid Gases
and
Particulates
As 4251 but also:
- Electrolytic processes
- Acid cleaning
- Metal pickling
- Metal etching
4279
(FFABEK1
P2SL)
Organic
Vapours,
Inorganic
and
Acid Gases
plus
Ammonia
and
Particulates
As 4277 but also:
- Manufacture and maintenance of
refrigeration equipment
- Agrochemicals
