A shockwave in a box

Impressive.  A man-made smoke ring type shockwave can be physically seen crossing the room and knocking down the boxes.

The only time I’ve seen this replicated, it was a lady belching.  Belching with such force that the windscreen of the car she was sitting in buckled and fell out.  Ladies can belch like that.  It normally smells of acetate.  Like a Monster drink.