Intoximeters, Inc. does not claim to be an expert on infectious disease transmission, but it has developed two guides (Infection Control Cleaning and Disinfecting Intoximeters Handheld Instruments and Infection Control Cleaning and Disinfecting an Intoximeters Desktop Instrument)  that list some of the concerns and commonsense steps that can be taken to reduce the likelihood of disease transmission while performing a breath alcohol test or while cleaning or disinfecting an Intoximeters, Inc. alcohol breath test instrument.
Additional information and directives on Coronavirus can be found through OSHA (3990-03 2020) or the CDC. The CDC has put out documentation for the maintenance on other types of breathing related equipment such as spirometers that may have helpful information on infections control measures.