Summary:

«One of the things we’ve learned over the past year is to be wary of the air around us — especially indoors. If other people are around, exhaling, they’re filling the space with their breath. If one of those people has COVID-19, they could be filling the space with infectious breath.»

Article written by  Nicole Wetsman

14|04|2021

Source:

The Verge

https://www.theverge.com/2021/4/14/22382361/covid-carbon-dioxide-co2-ventilation-sensor-bars-restaurant