Simply swap out a breathalyzer mouthpiece cover for each new person.
BACtrack Go Keychain Breathalyzer | Portable Alcohol Tester | White | 3 Mouthpieces Included | For Home & Personal Use
BACtrack C6 Keychain Breathalyzer | BAC Alcohol Tester | Optional App | Portable Alcohol Test for Home & Personal Use | 3 Mouthpieces Included
BACtrack S80 Professional Breathalyzer Alcohol Tester - Used
BACtrack Go Keychain Breathalyzer - White - BT-KC20 - NEW - SEALED
BACtrack Go Keychain Breathalyzer Ultra-Portable Pocket Keyring Alcohol Level
BACtrack S80 Professional Breathalyzer | DOT & NHTSA Approved | FDA-Cleared
