smell o vision

The article i read was about a device that a company in japan made that attaches to your smartphone and makes scents come out. they called it smell o vision and it basically absorbs smells around like if your in a garden it will absorb the smell of flowers and on your command it will release the smell but i think it would be kind of bad because if you were in a gym locker room in wouldn't smell too good at all. But i think it is a pretty good idea. http://www.cnn.com/2013/05/17/tech/innovation/apparently-this-matters-bellini-chatperf/index.ht