DEMONSTRATION I: Air is matter
We often think of air as empty space. But when we wave our hand or feel a breeze, we know that it can cause a gentle force onto our face. Or a strong force in the case of a gale. This is because air is made of atoms which have weight, and you can feel them when they crash onto your skin. Because air has weight, it is matter. Outer space is really just empty space, so there are no atoms there. This means that there are no breezes in outer space.
The AirZooka can knock things over, blow out a candle, and blow your hair around. It is using the air atoms as its “bullets”.