There's no dealbreaker quite like toxic breath. You can be a totally sexy, intelligent, funny dude, but if you get in to some close talking and blast her in the face with some hot onion breath, there's no way she's going to be turned on. You've gotta be aware of your breath situation and keep it under control if you want to make friends and influence others.

The BreathAlert is a little gadget that will fill you in on just how offensive your mouthsteam really is. If you need to go eat an entire container of TicTacs, the BreathAlert will let you know. If you already smell like you swallowed a mouthwash factory, it'll let you know to cool it and just do your thing. It's like having a friend that'll let you breathe into their face and will give you an honest judgment, but you won't have to breathe into your friends faces anymore. Everybody wins! — Adam Frucci

Tanita, via Coolest Gadgets