The FFP standards are mechanical filter standards used for protective respirator masks certified by the European Union. FFP-standard filters serve to protect against particulates such as dust particles, droplets, and aerosols.The EN 149 standard defines three classes of filter efficiency, namely FFP1, FFP2 and FFP3.
FFP filters are considered functionally equivalent to certain other filter standards regulated under other jurisdictions, such as N95 mask of the United States and KN95 filters of China. However, slightly different criteria are used to certify their performance, such as the filter efficiency, test agent and flow rate, and permissible pressure drop.
This article is about the European standards only. For information on other standards, on mechanical air filters in general, and the types of respirators which meet the FFP standards, see mechanical filter respirator. For more detailed information on items made to FFP standards, see the appropriate article: some FFP masks are filtering facepiece respirators (disposable) and some are elastomeric respirators (reusable).
It is the least filtering mask of the three.
It is mainly used as a dust mask (for example for DIY jobs). Dust can cause lung diseases, such as silicosis, anthracose, asbestosis and siderose (in particular dust from coal, silica, iron ore, zinc, aluminum or even cement).
- Aerosol filtration percentage: Not less than 94%.
- Internal leak rate: Maximum 8%.
This mask offers protection in various areas such as the glass industry, foundry, construction, pharmaceutical industry and agriculture. It effectively stops powdered chemicals. This mask can also serve as protection against respiratory viruses such as avian influenza, COVID-19 or severe acute respiratory syndrome associated with the coronavirus (SARS), as well as against the bacteria of pneumonic plague and tuberculosis. It is similar to the N95 mask.
- Aerosol filtration percentage: Not less than 99%.
- Internal leak rate: Maximum 2%