Respiratory Protection Standards
EN 149: 2001 + A1:2009 Respiratory Protective Devices - Filtering Half Masks To Protect Against Particles
European Standard for filtering half-masks. It contains laboratory tests to check the conformity with resistance to impacts, to cleansers and disinfectants, to temperature, to flame and with respiratory resistance. With A1:2009 amendment, filtering dusk masks are now classified as either single use / single shift / (NR) or reusable / more than 1 shift (R).
TLV: Contaminant concentration to which the user may be exposed without health effects.
TIL: Total INWARD LEAKAGE - Leakage of the ambient atmosphere in to the respiratory interface.
NPF: Nominal Protection Factor - Nominal level of protection given by respiratory PPE (in Laboratory conditions).
APF: Assigned Protection Factor - Level of protection which can realistically be expected in the workplace conditions.
DOLOMITE TEST (D): - Optional test under EN149 for clogging with dolomite dust. Respirators which pass the dolomite clogging test are proven to provide a more comfortable breathing level and longer lasting performance of filtration. These respirators are marked with a 'D' letter.
EN 136: 1998 Respiratory Protective Devices – Full Face Masks
This European Standard species minimum requirements for full face masks for respiratory protective devices.
EN 140: 1998 Respiratory Protective Devices – Half Masks and Quarter Masks
This European Standard species minimum requirements for half masks and quarter masks for use as part of respiratory protective devices, except escape apparatus and diving apparatus.
EN 14387: 2004 Respiratory Protective Devices – Gas Filter(s) And Combined Filter(s)
This European Standard refers to gas filters and combined filters for use as components in unassisted respiratory protective devices.
EN 143: 2000 Respiratory Protective Devices – Particle Filters
This European Standard species particle filters for use as components in unassisted respiratory protective devices with the exception of escape apparatus and filtering face pieces.
Respiratory Protective Devices: Threads for facepieces. Standard thread connection
Do You Know?
What’s the Difference between Low/Medium/High Capacity Filters?
Higher Capacity /Class means:
- bigger quantity of activated charcoal inside the filter.
- longer duration of the filter.
- higher volume and weight of the filter.
- higher breathing resistance.
Example: A B2 filter gives the same type of protection as a B1 filter but it will have a longer durability. On the other hand it’s probably less comfortable to use because it’s heavier and has higher breathing resistance.
How to Protect Yourself Guidelines
