Now an effective way to improve bad breath with the tongue cleaner tip that is specially designed to remove bacteria that causes bad breath. 70% of mouth odor is caused by bacteria on the hard-to-reach back area of the tongue. The contoured spoon shape traps and removes bacteria that causes bad breath. This patented design provides pulsating sprays that wet the tongue and sweep away bacteria. Compatible Models: Waterpik® Ultra Dental Water Jet WP-100 Waterpik® Ultra Cordless Dental Water Jet WP-450 Waterpik® Cordless Dental Water Jet WP-360