The protection provided by facemasks has been extensively investigated since the
beginning of the SARS‐CoV‐2 outbreak, focusing mostly on the filtration efficiency of filter …

Regulations for measures to protect against SARS-CoV-2 transmission vary widely around
the world, with very strict regulations in Germany where respirators (filtering face piece FFP2 …

Since the COVID-19 pandemic, polypropylene melt-blown nonwovens (MBs) have been
widely used in disposable medical surgical masks and medical protective clothing, seriously …

Since the year 2020, coronavirus disease 2019 (COVID-19) has emerged as the dominant
topic of discussion in the public and research domains. Intensive research has been carried …

Upper respiratory infectious diseases are often transmitted through ejected droplets and
aerosols at high velocity by coughs or sneezes. In its early stages, the rapid spread of the …

The filtration of air has attracted increasing attention during recent waves of viral infection.
This review considers published literature regarding the usage of cellulose-based materials …

Surgical and community face masks are used worldwide to reduce the transmission of
respiratory infections in indoor environments. Performance parameters for these loose-fitting …

This study introduces a customized mask retainer to improve the fit performance of surgical
masks using various advanced digital techniques. The participant's 3D face scans with and …

In this experimental study, the focus is to address the challenges of cross-contamination due
to the presence of an infected individual in a meeting room environment. A detailed analysis …

The global pandemic of COVID-19 has highlighted the importance of understanding the role
that exhaled droplets play in virus transmission in community settings. Computational Fluid …