How to find out if you have bad breath? Use the "Lick and sniff" technique. Lick the back of your hand with your tongue, wait for 10-15 seconds to let it dry, then sniff the area. Very reliable.
For those of you bothered with halitosis, Here are 3 Instant Cures for Bad Breath .
Bacteria hiding around the gum tissue or inside tooth decay are the main culprit of bad breath. It's important to keep regular dental check-ups to get professional help.