This narrative review and meta-analysis summarizes a broad evidence base on the benefits—
and also the practicalities, disbenefits, harms and personal, sociocultural and environmental …

Background As face masks became mandatory in most countries during the COVID-19
pandemic, adverse effects require substantiated investigation. Methods A systematic review …

In this perspective, we review the evidence for the efficacy of face masks to reduce the
transmission of respiratory viruses, specifically severe acute respiratory syndrome …

Background: Face masks are recommended based on the assumption that they protect
against SARS-CoV-2 transmission, however studies on their potential side effects are still …

Background Mask mandates for children during the COVID-19 pandemic varied in different
locations. A risk-benefit analysis of this intervention has not yet been performed. In this …

Background Surgical masks remain a focal part of the CDC guidelines to decrease COVID-
19 transmission. Evidence refuting significant effects of masking on ventilation is mostly …

Background From 2020 to 2023 many people around the world were forced to wear masks
for large proportions of the day based on mandates and laws. We aimed to study the …

Background The COVID-19 pandemic has changed worldwide hygiene practices. In
particular, the use of filtering face piece (FFP) masks markedly increased. Concerns have …

Background: Into the third year of the COVID-19 pandemic and the second year of in-person
learning for many K-12 schools in the United States, the benefits of mitigation strategies in …

In hilly regions, the average ambient temperature during summers and winters typically
ranges from 297 to 307 K (24 to 34° C) and 277 to 293 K (4 to 20° C). Therefore, this paper …