EN 149 explained: FFP1, FFP2 and FFP3 dust masks
EN 149 explained: FFP1, FFP2 and FFP3 dust masks
EN 149 is the standard for disposable filtering half masks that protect against particles such as dust, fumes and mists.
Updated
Quick answer
EN 149 masks are FFP1, FFP2 or FFP3. FFP3 gives the highest protection. NR means single shift only, R means reusable, and D means the mask passed the dolomite clogging test. Tight-fitting masks only work if they seal, so wearers need a face-fit test and must be clean-shaven where the mask seals.
At a glance
| Detail | |
|---|---|
| What it covers | Disposable dust masks (filtering facepieces) |
| Current edition | EN 149:2001+A1:2009 |
| Status in GB | Designated in Great Britain (GOV.UK notice 0142/26, 15 October 2026); in GB it does not give presumption of conformity for masks with ear loops |
| Status in Ireland and NI | Harmonised in the EU, so it applies in Ireland and Northern Ireland (since 21 April 2018) |
| On the label | "EN 149:2001+A1:2009 FFP3 NR D" or similar |
FFP classes
| Class | Minimum filter efficiency | Typical use |
|---|---|---|
| FFP1 | 80% | Low-hazard nuisance dust |
| FFP2 | 94% | Moderate dusts and mists |
| FFP3 | 99% | Fine and hazardous dusts, such as silica |
Shop EN 149
EN 149 questions
Do disposable masks need a face-fit test?
Yes. HSE and HSA guidance say tight-fitting respirators, including disposable FFP masks, need a face-fit test for each wearer.
What does NR D mean on a mask?
NR means single shift only. D means it passed the dolomite clogging test, so breathing stays easier for longer in dusty work.
Need this for a team?
We can supply and brand PPE for your whole team, delivered across the UK and Ireland.
Official sources
Standards and site rules change. Always check the current edition, the product's declaration of conformity and your own risk assessment.
- GOV.UK: Designated standards for PPE (Great Britain): https://www.gov.uk/government/publications/designated-standards-ppe
- European Commission: Harmonised standards for PPE (EU, applies in Ireland and Northern Ireland): https://single-market-economy.ec.europa.eu/single-market/goods/european-standards/harmonised-standards/personal-protective-equipment_en
- HSE: Respiratory protective equipment: https://www.hse.gov.uk/respiratory-protective-equipment/
- HSE INDG479: Guidance on RPE fit testing: https://www.hse.gov.uk/pubns/indg479.htm
- HSA: Respiratory protective equipment (Ireland): https://www.hsa.ie/eng/topics/personal_protective_equipment_-_ppe/respiratory_protective_equipment/
- BSI: the UK National Standards Body (publishes BS EN standards): https://www.bsigroup.com/en-GB/about-bsi/uk-national-standards-body/
- NSAI: National Standards Authority of Ireland (publishes I.S. EN standards): https://www.nsai.ie/