This is all based on conjecture, but I did ask a few of the engineers if they were working on an air purifier and they neither confirmed nor denied the claim. It only makes sense considering the fact that the Airblade actually sucks in the surrounding air and purifies 99.9 percent of it before spewing said air 400MPH onto your hands. Why else would Dyson have an in-house Microbiology lab? It can’t possibly be there for just the Airblade, right? Right?!