What utter BS. This will never work 窶" at least not as presented. The amount of airflow required to keep rain out of a human sized area is massive, meaning the amount of power required is huge. So either it窶ll weigh a ton, or last 2 minutes. Plus it will be incredibly noisy. That窶s assuming that a simple flow of air can actually deflect anything other than a light shower.
Oh, and the first pic is a photoshop, not a prototype.