Reuters, June 23, 2021
SANTIAGO, June 23 (Reuters) - Chilean researchers have repurposed a carbon dioxide detector model to warn of the risk of contracting COVID-19 in enclosed spaces.
The prototype measures air pollution which, in a room with people, would include the coronavirus if anyone was infected since it is known to circulate via exhaled vapor.
The device, which is not yet for sale, uploads data to the cloud and issues an audio alert if ventilation is insufficient that could result in COVID-19 transmissions.