If you meant clean air for the planet, not just yourself then your car is probably not the place to start. Use less electricity. That's where the majority of the air pollution comes from.
Not so fast...
Where I live, in a valley with mountain ranges on two sides, and an inversion in the winter and ozone in the summer, the vast majority of that problem comes from auto exhaust. Sure, there is some pollution from industry, but our coal burning power plants are hundreds of miles away.
Really the only thing that is going to help in this situation is electric cars, but there you go, being powered by coal.
Unless we can get solar charging going...
That's nothing, oligarchy built a society of drones.
Oh! You mean the robot planes. Sorry, my bad.
FTFY
a true AI, will show whatever way it's tought.
Thats sum teechin fer ya!
"Everything should be made as simple as possible, but not simpler." -- Albert Einstein