I been using a combination of leaf blower (forget the brand we have but its electric) I want to say its a Black and Decker, and a shop vac blower/vac, been doing this for years on all my cars and have had no issues yet.

 

I got this one https://www.homedepot.com/p/Ryobi-ON...2180/206451819 as the smaller one didn't have enough ofmph. This one will have to do as I am short (4'10") and any thing larger would have been too much at the car wash in the winter.
I ceramic coated because of our winters and this is my daily driver. My son calls this my last car and I have to protect her.