The SoFresh Tongue Cleaner effectively removes harmful bacteria that cause bad. breath, gum disease, tooth decay and plaque. ALLr Tongue Cleaning is. clinically proven to be one of the most effective ways to reduce bad breath. rr The SoFresh Tongue Cleaner has a unique, patented concave head with a. scraping edge that is specifically designed for gentle forward and side to. side motion. rr Scrape away odor-causing germs from the valleys and ridges of. the back of the tongue. Remove oral bacteria for a cleaner, fresher and.