Transmission of COVID-19 is primarily through droplet spread. “Aerosol” is a general term used to describe a range of particle sizes that can be propelled by coughing, talking and sneezing, as well as by certain aerosol generating procedures (see table 1 here). It appears extremely unlikely that aerosols that could develop at pulmonary air leaks could travel over 2 meters through a chest drainage system (chest tube, chest drain tubing, and the chest drain unit) without impacting the surrounding surface at some point. In case that virus particles make it to the chest drain unit, there is a possibility that they are delivered into the environment as all chest drain systems, conventional analogue and digital ones, have some sort of venting for positive pressure compensation. There are, however, differences in how they release air into the environment. The Thopaz/Thopaz+ system has been designed with the positive pressure valve located at the side of the canister facing the pump so that air will be directed towards the pump when a patient should cough. The only other exit port to the environment on Thopaz/Thopaz+ is the exhaust at the bottom. Even in the unlikely event that a condensate was to form in this area, it would only drop to the surface below and not be aerosolized.