Many countries introduced the requirement to wear masks in public spaces for containing
SARS-CoV-2 making it commonplace in 2020. Up until now, there has been no …

Unhealthy levels of air pollution are breathed by billions of people worldwide, and air
pollution is the leading environmental cause of death and disability globally. Efforts to …

In the times of Covid-19, face masks are considered to be the main source of protection
against the virus that reduces its spread. These masks are classified as single-use medical …

Background and purpose COVID-19 pandemic led to wide-spread use of face-masks,
respirators and other personal protective equipment (PPE) by healthcare workers. Various …

• In situations where there is a severe PPE shortage or anticipated stockout and when
strategies for optimizing available PPE use have been implemented, consider temporary …

With the outbreak and spread of the COVID-19 epidemic, HCWs are frequently required to
wear personal protective equipment (PPE) for nucleic acid sample collection in semi-open …

Nose and mouth covering (NMC) has been made compulsory for children in many countries
during the Covid-19 pandemic. We wanted to determine the average CO 2 levels in inhaled …

Abstract Introduction During the SARS-CoV-2-pandemic, face masks have become one of
the most important ubiquitous factors affecting human breathing. It increases the resistance …

Introduction To avoid exposure to SARS-COV-2, healthcare professionals use personal
protective equipment (PPE) while treating COVID-19 patients. Prior studies have revealed …

Background The last 2 decades have seen an increasing frequency of zoonotic origin viral
diseases leaping from animal to human hosts including Severe Acute Respiratory Syndrome …