Breathalyzer Validation Study

Reducing Risky Drinking Using Smartphone Paired Breathalyzer

The proposed project will test three commercial cellphone breathalyzers against a police grade breathalyzer device.The study will test the accuracy of these smartphone breathalyzers at assessing Breath Alcohol Content (BrAC) against a standard police grade breathalyzer. This study aims to fill the knowledge gap by determining the validity of smartphone paired breathalyzer devices to accurately assess BrAC. Data collection includes collection of BrAC measurements, as well as survey data.

Inclusion Criteria:

• Age 21-39 old
• Less than 4 drinking days and less than 12 drinks per week on average in the past 2 months
• Have previously consumed four (women) or five (men) or more standard drinks without problems
• A valid photo ID
• Willing to take public transportation home, via septa or an uber rideshare credit.

Exclusion Criteria:

• Desire alcohol treatment now or received it in the past 6 months
• Alcohol dependence with withdrawal per DSM-V criteria
• Non-English-speaking
• Individuals who have a medical condition or who are taking medication which limits or prevents the consumption of alcohol.