105
Marking and area of application of gas respirators (EN141, EN14387)
Type letter Color code Class (per gas concentration)
Field of application
A
brown
1 or 2 or 3
Organic gases and vapors with boiling point greater than 65˚C
B
gray
1 or 2 or 3
Organic gases and vapor except CO
E
yellow
1 or 2 or 3
Sulfur dioxide and other acid gases and vapors
K
green
1 or 2 or 3
Protects against ammonia and derivatives of organic amines
SUPAIR
®
• RESPIRATORS
Special filters
NO-P3 blue-white
-
Protects against nitrogen oxides, nitric oxide (for single-use only)
HG-P3 red-white
-
Protects against mercury vapor, chlorine gas (longest duration of use 50 hours)
CO-P3 black-white
-
Protects against carbon monoxide (for maximum 20, 40 or 60 minutes)
AX brown
-
Protects against organic chemicals with boiling point lower than 65°C
(for max. 20-60 minutes)
SX violet
-
Protects against substances determined by separate tests
• protects against inert powders and non-hazardous solid
or liquid particles (e.g. cement, cellulose, porcelain kaolin,
rubber, iron filings, coal dust, vegetable oil, flour) • mark D
verifies that the particle filter has passed the dolomite test
and guarantees that it will not clog up and can be used for a
longer time while maintaining low breathing resistance • cone-
shape, plastic coated nose clip, inner foam for comfortable fit;
non-allergenic • valveless version, nonwoven polypropylene
filter media • two elastic, synthetic rubber headbands • 4 MC
• weight: 9 g • packaging: 240/20
EU standard: EN149:2001 +A1:2009
23151
SUPAIR
®
FFP1 NR D SL
23151
Filters heavier than 300 g cannot be attached directly to the half mask, while those heavier than 500 g cannot be attached
even indirectly to full face masks. These filter cartridges should be attached to the masks with a separate tube and supplied
with a device to facilitate movement (e.g. belt-mounted powered air respirator).
Major standards regarding respirators
EN136
Full face masks •
EN137
Self-contained open-circuit compressed air breathing apparatuses with full face mask (
EN14435:
with half mask) •
EN138
Fresh air respirators for use with full face mask and half mask or mouthpiece •
EN140
Half mask and
quarter masks •
EN141/EN 14387
Gas respirators and combined filters (gas + particle) •
EN143
Particle filters •
EN145
Self-
contained closed-circuit breathing apparatus compressed oxygen (nitrogen) •
EN149
Particle filtering half masks •
EN404
Filter self-rescuers from carbon monoxide (escape hoods) •
EN405
Valved filtering half masks to protect against gases and/
or particles (combined half masks) •
EN12941
Power assisted filtering devices incorporating a helmet or a hood •
EN12942
Power assisted filtering devices incorporating full face masks, half masks or quarter masks •
EN14683
Surgical face masks
Respiratory protection gear against flu epidemics
Recently, there have been a number of threats (SARS, bird and swine influenza) of the appearance of a new and extremely
pathogenic human influenza subtype leading to a worldwide epidemic (pandemic). Besides taking emergency measures
(maintaining a monitoring system, compliance with animal and human health hygienic rules, production of adequate vaccines
and sera), individual protective equipment - respirators in particular - need to be used to prevent epidemics.
Influenza viruses are 20-300 nanometer (10
-6
mm) parasites of the cells of organisms, therefore, people coming into
contact with patients suspected of having been infected are recommended to wear disposable FFP2 and FFP3 particle
filtering masks to protect themselves against particles (EN149:2001). FFP3 masks provide a higher level of protection but
equally important protective factors are how and how long respirators are worn (fit and replacement). FFP2 masks with an
exhalation valve offer more comfort, while the valveless version prevents the virus from being transmitted from infected
patients. Medical and surgical face masks are used to mitigate this latter hazard (EN14683:2005: bacterial filtration efficiency
> 98%, breathing resistance < 3mm/H
2
O/cm
2
).
