I think people would appreciate knowing when they have unpleasant breath. A helpful product might be a bad breath monitor. A user could blow on it, and it would indicate the degree of bad breath, so that if it is unpleasant, the user knows to do something about it, or at the very least to avoid getting too close to others and thereby spare them the discomfort.
I envision this product as a complement to Listerine strips. It could take the form of disposable strips of paper of the same size as Listerine strips, and they could be sold together with Listerine strips in an extra, attached compartment. The way the paper strips would work is by containing chemicals that react to the most common components of bad breath (like garlic, onions, etc.), and cause a visible color change in the paper when these ingredients are present -- the worse the breath, the stronger the color change.
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I really like the idea of having a bad breath indicator because so many people are just clueless aout their bad breath and it is really awkward to have to tell someone about it, or to be told yourself. Also, it's kind of like the blue indicator strip on the Oral B toothbrush - If you bundle the indicator with mouth fresheners - the indicator will promote use of the freshening product. The scientific details of actually making the indicator work may be tricky!
GReat idea. You should join forces with the Milk carton color bar company and form one big color bar company that teste for all things for when thery go bad (breath, milk, meat, break pads, etc.)
Great idea! What about building it into a ring or a compact? Problem is, those that are clueless about the stench of their breath will not be the ones buying the sensor. It's a self-awareness thing, ya know? Still, I like it.
Here is a thought, a febreese type spray that would make the air that the person breaths purple or green so it shames them into doing something about it. and if that does not work shock them with a tazer gun.