Do you trust Google too much?
Many people today have tried to smell an Airport terminal or a ghost, but those people are to be called April fools. There isn't the technology yet for such a task, the least in your standart device. And even if there was, how does success smell?!... It smells like 1st of April... Oh, yeah, by the way you can "smell" that too.
Here's the mischief, don't forget to prank your friends by telling them how well it works on your device:
Google nose beta