The U.S. Department of Homeland Security has updated its "virus calculator" with UV index 0. Since indoor temperatures have to respect the quite narrow comfort level of 20 to 24 °C and UV-A and ...

“We saw more reported COVID-19 deaths on the low and high end of indoor relative humidity, and less in this sweet spot of 40 to 60%,” Connor Verheyen says. “This intermediate relative humidity window …

‘We found that the association between influenza activity and absolute humidity (AH) was nonlinear and varied across regions. In northern China with temperate climate, the low AH was associated ...

'The characteristics of HVAC systems that may have an effect on transmission include ventilation, filtration rating, and age, to name a few. Developing a deeper understanding of this issue is ...

ASHRAE has just published a "Position Document on Infectious Aerosols". The paper gives evidence related to different intervention mechanisms possible in buildings but then leaves the decision to ...

Festgelegte Standards für die Luftfeuchte in Innenräumen sehen sie als wichtiges Element zur Eindämmung der Covid-19-Pandemie.' Akiko Iwasaki Stephanie H Taylor, MD, MArch, FRSPH …

“We saw more reported COVID-19 deaths on the low and high end of indoor relative humidity, and less in this sweet spot of 40 to 60%,” Connor Verheyen says. “This intermediate relative humidity window …