Corona will continue to accompany life in 2021 and with the virus the countermeasures will come: in Bavaria, FFP2 masks will even be compulsory. GIGA explains what to look out for with the different masks.
From community masks to FFP2, you can see a lot on the street since the onset of the corona pandemic. What sets FFP2 masks apart from others is often not easy to understand for laymen. It becomes especially confusing when more well-known titles such as FFP2 are added.
FFP2, N95 and KN95: Here’s what mask wearers need to know
Industrial supplier 3M – also known as the mask maker – has one Comparative analysis compared to common types of masks. The different names provide information about the certifications of different countries or regions. The FFP2 mask – a so-called particle filtering half-mask – is common in Germany. It is approved and tested in accordance with European regulations. The filter efficiency of FFP2 masks is at least 94 percent, a lower minimum than that of N95 and KN95. Both filtered at least 95% of the aerosols in the test, according to 3M. FFP3 masks even filter 99%.
N95 (tested in the US) and KN95 (China) also differ from the FFP2 mask in terms of resistance to inspiration and expiration. The latter has lower inhalation resistance – a plus for anyone who finds breathing through masks a problem. On the other hand, the resistance to expiration is highest with FFP2 masks. It is important that the values are tested under ideal conditions. Effectiveness mainly depends on whether the masks are worn correctly. So on the mouth and the nose, and they have to be airtight. Repeated wearing is not recommended.
You can find an overview of the AHA rules in the video. Ventilation is also part of it:
Pay attention to CE certification when purchasing a mask
Particle filtering half masks are designed as personal protective equipment (PPE) primarily for self-protection. There are versions with and without valve. Typically, valve masks only filter when inhaled. They are therefore less suitable for protecting others than masks without a valve. Masks legally marketed in Europe must meet the relevant DIN standard DIN EN 149: 2009-08 and be assessed in accordance with European PPE regulations. These products are CE marked. If you are careful, you can be sure to buy an approved mask. But there are differences.
More information on community protection and masks is available at Federal Institute for Pharmaceutical and Medical Products at.