By Kirk Miller “Is this an April Fool’s joke?” That’s the first question my editor asked when he saw a pitch for the new Dyson Zone, which is described by the company as “air-purifying headphones with active noise canceling.” Since it’s two days before the first of April and the company has already denied that this is a prank, we’re going to take their word that this is real. So the next question is, what exactly is this? And then, would anybody real want it? Basically, the Dyson Zone is a way for people to deal with air and noise pollution, particularly in cities. Dyson claims they’ve spent s…