Ontology highlight
ABSTRACT:
SUBMITTER: Pogacnik Krajnc A
PROVIDER: S-EPMC7956512 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
Sensors (Basel, Switzerland) 20210224 5
Size- and time-dependent particle removal efficiency (PRE) of different protective respiratory masks were determined using a standard aerosol powder with the size of particles in the range of an uncoated SARS-CoV-2 virus and small respiratory droplets. Number concentration of particles was measured by a scanning mobility particle sizer. Respiratory protective half-masks, surgical masks, and cotton washable masks were tested. The results show high filtration efficiency of FFP2, FFP3, and certifie ...[more]