Comparative Performance Testing of Respirator versus Surgical Mask Using a Water Droplet Spray Model
| Autor: | Joost Hopman, Andreas Voss, Martijn de Groot, Heiman F. L. Wertheim, Rob B. M. Anzion, Paul T.J. Scheepers, Steven Teerenstra, H.J. Holterman, Maurice van Dael |
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| Rok vydání: | 2021 |
| Předmět: |
Face shield
Materials science business.product_category Infectious Disease Transmission Patient-to-Professional Coronavirus disease 2019 (COVID-19) Health Toxicology and Mutagenesis Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lcsh:Medicine COVID-19 pandemic Economic shortage Article Healthcare improvement science Radboud Institute for Health Sciences [Radboudumc 18] respiratory protective equipment Virus transmission 03 medical and health sciences All institutes and research themes of the Radboud University Medical Center 0302 clinical medicine Occupational Exposure Humans 030212 general & internal medicine particle size distribution Respirator Respiratory Protective Devices Agro Field Technology Innovations Personal Protective Equipment Aerosols 0303 health sciences Ventilators Mechanical 030306 microbiology SARS-CoV-2 Other Research Radboud Institute for Health Sciences [Radboudumc 0] lcsh:R Public Health Environmental and Occupational Health Respiratory protective equipment Masks COVID-19 Water Test method virus transmission Particle size distribution Nebulizer Surgical mask lnfectious Diseases and Global Health Radboud Institute for Health Sciences [Radboudumc 4] business Biomedical engineering |
| Zdroj: | International Journal of Environmental Research and Public Health 18 (2021) 4 International Journal of Environmental Research and Public Health, Vol 18, Iss 1599, p 1599 (2021) International Journal of Environmental Research and Public Health, 18(4), 1-9 International Journal of Environmental Research and Public Health Volume 18 Issue 4 International Journal of Environmental Research and Public Health, 18 International Journal of Environmental Research and Public Health, 18, 4 International Journal of Environmental Research and Public Health, 18(4):1599, 1-9. MDPI AG |
| ISSN: | 1660-4601 1661-7827 |
| Popis: | Background During the SARS-CoV-2 pandemic, there was shortage of the standard respiratory protective equipment (RPE). The aim of this study was to develop a procedure to test the performance of alternative RPEs used in the care of COVID-19 patients. Methods A laboratory-based test was developed to compare RPEs by total inward leakage (TIL). We used a crossflow nebulizer to produce a jet spray of 1–100 µm water droplets with a fluorescent marker. The RPEs were placed on a dummy head and sprayed at distances of 30 and 60 cm. The outcome was determined as the recovery of the fluorescent marker on a membrane filter placed on the mouth of the dummy head. Results At 30 cm, a type IIR surgical mask gave a 17.7% lower TIL compared with an FFP2 respirator. At 60 cm, this difference was similar, with a 21.7% lower TIL for the surgical mask compared to the respirator. When adding a face shield, the TIL at 30 cm was further reduced by 9.5% for the respirator and 16.6% in the case of the surgical mask. Conclusions A safe, fast and very sensitive test method was developed to assess the effectiveness of RPE by comparison under controlled conditions. |
| Databáze: | OpenAIRE |
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