Droplet Transmission

The airborne lifetime of small speech droplets and their potential importance in SARS-CoV-2 transmission

This article examines the role of small droplets emitted from normal speaking in an environment with stagnant air. The authors used a laser light scattering method to provide real-time visual evidence of speech droplet emission and assess the airborne lifetime of those droplets.

Low-cost measurement of face mask efficacy for filtering expelled droplets during speech

This article demonstrates a low-cost method to testing the effectiveness of different types of masks and facial coverings that have become widely used during the COVID-19 pandemic by counting the quantity and size of droplets emitted through the different masks.

Transmission of COVID-19 virus by droplets and aerosols: A critical review on the unresolved dichotomy

This review paper outlines the literature concerning the transmission of SARS-CoV-2 via droplets and aerosols in different environmental settings and demonstrates the behavior of droplets and aerosols from an infected person in various confined spaces.

 Visualizing Speech-Generated Oral Fluid Droplets with Laser Light Scattering

This letter provides visual evidence of the droplets (which harbor infectious viral particles) generated through speech and the droplet size and quantity with and without wearing a mask.

Effects of ambient temperature and humidity on droplet lifetime – A perspective of exhalation sneeze droplets with COVID-19 virus transmission

The study shows the potential effects resulting from ambient temperature and ambient relative humidity on virus carrying droplets which might be helpful when considering the measures that need to be taken to address indoor air quality, ventilation, dehumidifier settings, and the HVAC systems in hospitals, schools, residential buildings, and shopping malls, etc. in order to prevent further transmission of SARS-CoV-2.