One of the most unconventional designs to hit the market comes in the form of air, yes an air umbrella offers protection from rain by shooting a steady sheet of air to create an invisible canopy. Designed and engineered by Je Sung Park and Woo Jung Kwon, the air umbrella works by sucking air through the bottom intake and blowing it out the upper outlet to form an air curtain. The size of the air umbrella air curtain can be adjusted to accompany multiple users at once. Amazing!