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Many dust masks from Busters bear the code FFP. This stands for ‘filtering facepiece’. It shows what and how many particles of suspended dust, mist or fibres are filtered.

It isn’t always easy to figure out all the different pictograms, standards and quality marks. With the right help, you can find the necessary information on every package so you always make the best choice at the building supply store. Always follow the instructions in the manual for correct use.

Filtering FacePiece

Dust masks are marked with the code FFP. This stands for ‘filtering facepiece’. They can be classified as FFP 1, FFP 2 or FFP 3.

The higher the number, the better the protection. When you do a task that involves toxic substances, it is best to choose the highest protection.

  • A face mask with code FFP1 protects against large, solid particles. Only suitable for protection against irritating, not harmful substances. Minimum filter efficiency of 78%.
  • A face mask with code FFP2 protects against solid and liquid irritating aerosols. Minimum filter efficiency of 92%.
  • A face mask with code FFP3 protects against solid and liquid toxic aerosols. Minimum filter efficiency of 98%.

Extra Indications

For some dust masks the FFP score is followed by another extra indication. This can be handy to help you choose.


Dust masks with the ‘D’ indication have passed the dolomite test. They are more resistant against clogging over time. There is also less breathing resistance, which makes work more pleasant.


Dust masks with the ‘V’ indication have a valve for exhalation. This reduces breathing resistance and also ensures that the CO2 and moisture level in the dust mask stays as low as possible.


Dust masks that have passed the dolomite test and have a valve.


The R indication on the dust mask shows that it is reusable. Standard dust masks can only be used for one session.


Standard dust masks can only be used for one session. To clarify this, the indication NR may be stated on the packaging. If nothing is stated, the dust mask should in any case only be used once.

Why wear a dust mask

Work environments often conceal hazards that are not immediately recognised. These hazards can cause permanent damage to your health, and in the worst case even be life-threatening.

That makes it important to get the maximum possible protection for your respiratory passages against the harmful effects of dust particles, gases, smoke and fumes that are present in the ambient air.

Dust masks protect you against solid dust particles, fibres, microorganisms, mists and aerosols (suspended droplets and dust).


  • Always protect yourself as well as possible. Choose the appropriate personal protective equipment for a specific task. This way you will not only work safely, but also better and more comfortably.
  • Dust mask with FFP1 score protects you against non-harmful particles
  • Dust mask with FFP2 score protects you against irritating and harmful particles
  • Dust mask with FFP3 score protects you against toxic and harmful particles
  • Only use a dust mask once, unless indicated otherwise with R
  • Dust masks with the indications V and/or D give higher respiratory comfort
  • Only choose dust masks that meet the EN 149 standard
  • Take the possible risks into account and use maximum protection
  • Also look at specific standards
  • Always work comfortably and safely
  • Tip: Be sure to remember work gloves, work shoes and safety glasses
  • Tip: Find the product you need in your nearest building supply store or garden centre.