- Aerosols emitted by passengers in a car has 8-10% of chance reaching the other person
- Virus flows from front to black as air flows in this way inside a car.
- Opening windows while traveling in the car reduces this chance to 0.2-2%
- Opening the window opposite to you acts as an air curtain that flushes out the virus.
- Opening windows half or full has the same impact.
- The no. of passengers or the driving speed of the car could affect the transmission
An airflow study offers some insight on how to...
https://mfame.guru/opening-car-windows-while-traveling-reduces-covid-risk/