Publications by authors named "Marvin Mattern"
Face mask performance related to potentially infectious aerosol particles, breathing mode and facial leakage.
Int J Hyg Environ Health
March 2023
Article Synopsis
- - During the COVID-19 pandemic, certified Respiratory Protective Devices (RPDs), like surgical masks, were essential for protection against virus-laden aerosols, but traditional performance assessments faced challenges in realism and effectiveness in preventing infection.
- - A new testing method was developed to measure RPD performance in terms of efficiency and pressure loss, using artificial saliva to simulate exhaled aerosols, revealing that most masks can filter over 85% of these particles when fitted correctly.
- - The study found that proper facial fit is crucial for RPD effectiveness, with real-world conditions leading to substantial variations in filtration efficiency, showing that masks often protect the wearer more than those nearby, as high pressure loss correlates with lower third-party