It is cleaning air from pollution, but it is also removing lots of oxygen. You don't want to breathe hydrogen car exhaust.
Re:Hydrogen fuel cell cars (2020)
by Transrapid on Monday July 05, 2021 @07:50AM
(#27736968)
Wrong. have a look here: https://www.youtube.com/watch?v=ibo5fN727Rg
Notice the car is standing still, most probably having minimal consumption of oxygen.
"It is generally considered more ecological than electric, because of much lesser environmental footprint than required for producing batteries. Another advantage would be bigger driving range and faster refuelling."
And the biggest advantage: you're cleaning the air while driving from particles which harm your health. <- This reason alone is a key factor. Have a look here: https://youtu.be/ormfLJmWGC8
People complained about the emission cheating regarding volkswagen. So everybody who did has to be pro hydrogen car. Because its real emission free. not like a battery car