Seems like they are breathing plenty of carbon monoxide during the race too: https://www.welovecycling.com/wide/2022/07/01/cars-supporting-the-bikes-what-does-i

Seems like they are breathing plenty of carbon monoxide during the race too: https://www.welovecycling.com/wide/2022/07/01/cars-supporting-the-bikes-what-does-it-take-to-make-the-tour-de-france-happen/ https://www.welovecycling.com/wide/2022/07/01/cars-supportin...