Brochure 2023 V2 online - Flipbook - Page 50
RESPIRATORY PROTECTION STANDARDS
Whilst every e昀昀ort is made to ensure the accuracy of product information,
Centurion Safety Products Ltd reserves the right to improve and modify
speci昀椀cations at any time without prior notice.
NEVIS Mask Sizing Instructions
WORK PLACE PROTECTION FACTORS What is a protection factor?
Use any convenient measuring tool to
measure the distance from the bridge
of your nose to the tip of your chin.
Nominal Protection Factor: The minimal level of protection that the equipment has
to demonstrate under laboratory test conditions when tested in accordance with
the European Norm.
Do not follow the contour of the
nose as this will give you incorrect
measurements.
Assigned Protection Factor: The level of respiratory protection that can be
expected to be achieved in the workplace by 95% of adequately trained and
supervised wearers using a properly functioning and correctly 昀椀tted respiratory
device.n (More information on Assigned Protection Factors is detailed in EN
529:2005 Respiratory Protective Devices – Recommendations for selection, use,
care and maintenance – Guidance document).
Plot your measurements on the graph
below to 昀椀nd the best mask 昀椀t.
L
M
S
L
M
S
Assessing the minimum required protection factor (MRPF) To determine your
minimum required protection factor it is necessary to know the worst case
concentration of airborne contamination in the work place.
Recommended
Preference
Not Recommended
Product
Standard
Description
Classi昀椀cation
Nominal P.F
Assigned P.F
(UK)
Filter Options
ConceptAir Helmet/Visor Kit
EN 12941
Powered 昀椀ltering devices incorporating
a helmet or a hood
TH2
50
20
TH2P (Particulate)
EN 166 1 B 9 3
EN 397
ConceptAir Visor Kit
EN 12941
Powered 昀椀ltering devices incorporating
a helmet or a hood
TH2
50
20
TH2P (Particulate)
EN 166 1 B 9 3
ConceptAir Welding Kit
EN 12941
Powered 昀椀ltering devices incorporating
a helmet or a hood
TH2
50
20
TH2P (Particulate)
EN 175
Nevis Fresh Air BA Kit
EN 138
Fresh air hose breathing apparatus for
use with Full Face mask
Class 2
2000
40
n/a
EN 136
Information is for guidance and reference only and may be subject to change. The Assigned Protection Factors in the above table refer to UK guidance only.
For full product information please visit: centurionsafety.eu
50
For full product information please visit: www.centurionsafety.co.uk
Additional Headpiece
Certi昀椀cation
