Posted in NEWS I measured CO2 levels on a plane: It showed me when I was most likely exposed to COVID December 26, 2022 Air travel amid COVID outbreaks can be unnerving but a carbon dioxide detector can help gauge risks. Here’s what a CO2 detector showed on a flight. http://rssfeeds.usatoday.com/~/699038958/0/usatoday-newstopstories~I-measured-CO-levels-on-a-plane-It-showed-me-when-I-was-most-likely-exposed-to-COVID/