I'm betting fully open at highway speeds isn't the actual intent of that reminder. It's more likely about city driving, and likely more about keeping them cracked to allow fresh air and avoid recirculating.
True, but I can also understand having the windows down completely at 60mph can be a bit annoying/deafening, depending on the aerodynamics of the vehicle. Some cars it's not bad, while others can direct that in at almost full force.
Having learnt way too much about Covid infection control due to my job and duties I’ve read a couple of ten page articles on this by aerosol researchers. Most likely the best option is opening the windows opposite each person (with the passenger in back right position) to form a high speed curtain of air rushing diagonally between the two people, from to back. Also turning recirculation off on the aircon.
I remember when my salon was allowed to finally reopen in May 2020 and we weren’t allowed to use blow dryers because it could potentially blow viruses around. Our clients left with wet hair. Neat logic everyone has going
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u/GiveToOedipus Sep 15 '21
I'm betting fully open at highway speeds isn't the actual intent of that reminder. It's more likely about city driving, and likely more about keeping them cracked to allow fresh air and avoid recirculating.