Will pull a quote from their conclusion: “Commercial surgical masks marketed for medical use had mean particle removal efficiencies from 53% to 75% when worn as designed but up to 90% when snugged to the face under a nylon layer. Cloth masks tested had widely varying mean particle removal...
But what does it mean? Medscape Medical News 27 Nov 2024 Integrate Interventional Oncology Into Care Pathways to Optimise Cancer Therapy Dr Jason Yeung and Dr Steve Bandula discuss the role of interventional oncology procedures in cancer management to enhance oncology practice and improve patient ...
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Additionally, smartfilters.com have a greatarticleon this subject, citing research showing that the respirators testedcouldfilter down to 0.007 microns (much smaller than Covid-19). For example the 3M 8812 respirator (FFP1 rated) was able to filter 96.6% of particles 0.007 microns or larger. ...