There are several tests available to confirm halitosis (Bad breath):

1. The wrist test: Lick the back of your wrist, allow the saliva to dry for 5 to 10 seconds, and then sniff the area to check for any foul smell .
2. The spoon test: Use a small spoon to scrape the back part of your tongue, and then smell the gunk to determine the odor of your breath.
3. The gauze test: Wipe the surface of your tongue with a 2×2 inch square of medical gauze and then smell the gunk to check for any bad odor .
4. The airbag test: Exhale into an odorless plastic bag, seal it, and then smell the air inside the bag to check for any foul odor.
5. The floss test: Smell unwaxed dental floss after flossing between your teeth to check for any bad breath originating from between your teeth.
6. Seeking someone else’s opinion: Get someone else to smell your breath and provide feedback on whether there is a noticeable odor.

These tests are valuable methods to evaluate the quality of your breath and confirm the presence of halitosis. They can help in identifying the source of bad breath in order to take appropriate measures for its treatment and prevention.