If at any chance these are real, they don't use air -- they're magnets that use metals in the ground to hover...
Unfortunately, this technology is nonexistent.
You might say, "hey, it looks real", there is NOOO way that some random company came up with electromagnetic hover technology before massive governments spending millions trying to create the technology could.
This can't be real, people are taking it way too seriously.
It's a fun video but not possible.
Also, air pressure cannot possibly come out of a board that small if you think it's air pressure, that's wrong too. It would make a lot more sound too, if air.
One more thing:
Here's a photo of the shoot and you can obviously see a crane off to the right in the background.