Background: Using a multiple-measurement approach, we examined the real-world
effectiveness of portable HEPA-air filtration devices (air cleaners) in a school setting …

Background Using a multiple-measurement approach, we examined the real-world
effectiveness of portable HEPA air filtration devices (air cleaners) in a school setting …

Background Growing evidence suggests an important contribution of airborne transmission
to the overall spread of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) …

Background Indoor aerosol transmission of SARS-CoV-2 has been widely recognized,
especially in schools where children remain in closed indoor spaces and largely …

Objectives To compare the prevalence of SARS-CoV-2 and other respiratory viruses in
saliva and bioaerosols between two winters and to model the probability of virus detection in …

Objectives Covid-19 shone a spotlight on the poor air quality present in many classrooms
and led to multiple calls for Air Cleaning Technologies (ACT) in schools. This is …

Over 20 years ago a report commissioned by the European Commission identified air quality
in schools as a public health priority. Despite this concern, little action was taken in the …

In the wake of the COVID-19 pandemic, an increased risk of infection by virus-containing
aerosols indoors is assumed. Especially in schools, the duration of stay is long and the …

Respiratory infections, including SARS-CoV-2, are spread via inhalation or ingestion of
airborne pathogens. Airborne transmission is difficult to control, particularly indoors …

SARS-CoV-2 replicates in the respiratory tract and spreads through exhalation of infectious
respiratory particles. The chances of transmission increase the longer an uninfected person …