What is this guy doing in the new Adidas commercial? (Video included)

This has been driving me crazy for a week now. Watch this recent Adidas commercial, and check out the guy (at 0:41) with some kind of blue tube coming out of his mouth:

WTF is that guy doing? Is that a freakin’ leaf blower?

It looks like someone is using a vacuum cleaner on his face with one of those brush attachments, except it is blowing not sucking. I would guess this implies some sort of illicit activity, but I can’t say I’ve ever seen anything like that.

To me it looks like a vacuum cleaner set to blow, and they’re just fooling around… making it blow into the guy’s mouth so his lips flap all around and he makes a funny face. I can’t think of any illicit activities that involve a vacuum on blow.