It is never fun to be around someone who has a bad breath. It is even worse when they don’t have any idea about their breath odor. This Bad Breath Detecting Pen can help with that. It looks like a regular pen but can measure your breath odor. It has 5 odor ratings.
To get started, simply breathe onto the device for 5 seconds. When it beeps, you are ready to see your reading. The sensor has a lifetime of 2000 times.