During the Covid-19 pandemic, mouth and nose protection against droplets and aerosols is ubiquitously applied. Due to their comparable high effectiveness in filtering particle emission 1 and their ...
As we swiftly approach two years of pandemic life, it's easy to feel bummed that things we safely rediscovered in 2021 — indoor dining! real holidays! a fleeting sense of normalcy!— have been thwarted ...
During the first wave of Covid-19 infections in Germany in April 2020, clinics reported a shortage of filtering face masks with aerosol retention> 94% (FFP2 & 3, KN95, N95). Companies all over the ...
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