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According to the Federal Health Ministry, PSA Class FFP2 masks should filter at least 94% of all aerosols in the air, FFP3 masks even 99%.

In the age of the pandemic, respiratory masks protect our health and, in some cases, our lives against viruses and germs. Today, the heart of this omnipresent companion is meltblown nonwoven. Its sophisticated manufacturing technology is the key to highlyeffective particle filtration, to the least possible breathing resistance and to the highest level of comfort – all provided at a low weight.
 
Meltblown nonwoven fabrics form the very core of protective masks, embedded between two layers of spunbond material. It is above all the so-called respiratory or FFP masks (FFP = filtering face piece) that offer protection against inhaling the smallest airborne particles, drops and aerosols. In general, they feature between two and three meltblown nonwoven layers, while medical face masks (surgical masks) have only one layer. 

Depending on the mask structure, the running meter weights of these nonwovens range from around 20 to 80 grams per square meter. Its light weight indicates that it must – in addition to protecting against particles – fulfill another function, namely ensuring the least breathing resistance possible.

 

Contact

Juliane Müller-Weigel

Sales Manager, Oerlikon Nonwoven

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