A Tornado Inside a Soap Bubble

This is AMAZING, check this out:

What seems to be happening here is that the person featured in this video creates a soap bubble. Then, he makes a second one right under the first using air coming from some kind of fog generator. To end the process, he rips the barrier between the two bubbles and pokes a hole on top of the initial one, letting the air flow out in a tornado-like fashion.