All I Want Is a Robotic Air Conditioner

Northern California weather is pretty temperate. You can get by with a lack of central air conditioning, which is good news since nary a single place I've lived in the Bay Area has had it. But in the summer, there are sweltering days where the heat feels inescapable. While I don't wish I had central air, I do wish I had something better than a box fan for those hottest weeks, something that would follow me around while perfectly streaming air at my dew-drenched face. What I want is a robotic fan.