Filtration efficiency of surgical and FFP3 masks against composite dust
| Autor: | Sebastian Breul, Stevan M. Cokic, Franz-Xaver Reichl, Lode Godderis, Bart Van Meerbeek, Kirsten Van Landuyt, Christof Högg, Peter Hoet |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
RESPIRATOR 0206 medical engineering Dust particles Composite number 02 engineering and technology INHALATION complex mixtures Respirable dust 03 medical and health sciences Nanoparticle 0302 clinical medicine Occupational Exposure dental (surgical) mask Dentistry Oral Surgery & Medicine transmission electron microscopy (TEM) NANOPARTICLES PARTICLES EXPOSURE Particle Size Composite material composite dust General Dentistry Aerosols RELEASE Science & Technology Masks Dust 030206 dentistry PERFORMANCE 020601 biomedical engineering Aerosol Grinding Face masks FFP3 respirator PENETRATION Life Sciences & Biomedicine Filtration Particle fraction |
| Zdroj: | European Journal of Oral Sciences. 128:233-240 |
| ISSN: | 1600-0722 0909-8836 |
| DOI: | 10.1111/eos.12697 |
| Popis: | The aim of this study was to investigate the protection efficiency of two types of face masks against composite dust and to characterize the particles that penetrated through the masks. Composite dust was created by grinding a commercial nano-filled composite in a plexiglass box without using water cooling or high vacuum evacuation, in order to obtain a worst-case exposure. Dust particles were collected using a personal inhalable aerosol sampler (IOM) fixed inside a custom-made phantom head. Surgical and filtering facepiece (FFP3) masks were tested, and the situation without a mask served as control. The IOM sampler contained a cassette with two filters to collect large inhalable (4-100 µm) and respirable dust particles (1 µm) being seen when no mask was applied, whereas only nanoparticles could be detected when either type of face mask was applied. Even though FFP3 masks showed a higher filtration efficacy than surgical masks of the inhalable dust fraction, penetration of a small respirable particle fraction was inevitable for both masks. ispartof: European Journal Of Oral Sciences vol:128 issue:3 pages:1-8 ispartof: location:England status: Published online |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text