Concept
The Effectiveness of Various Safeguards
- Because of the shortage of PPE (especially in the US) new guidelines from the CDC inspired rapid production of homemade/fabric masks
- Different materials have different success rates in preventing contact with aerosols or droplets
- Three types of disposable particulate respirators known as filtering facepiece 1 (FFP1), FFP2 and FFP3 have been used by healthcare workers in Europe
- FFP3 is reported to be the most effective in filtering particles, with a minimum filtration of 99% and maximum leakage of 2% to the inside of the mask
- Other studies compared surgical masks, homemade masks, and FFP2 masks (minimum 94% filtration and max. 8% leakage to the inside) and found that FFP2 masks vastly outperform surgical and homemade masks
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Updated 2020-07-21
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SARS-CoV-2 (COVID-19)
Biomedical Sciences