Can a breathalyzer be shared among multiple users?

No, a breathalyzer should not be shared among multiple users. Breathalyzers are designed for personal use and are not hygienic to share due to the risk of spreading germs and bacteria. Each breathalyzer requires regular calibration to ensure accurate readings, and sharing it could lead to tampering or misuse, affecting its performance. Moreover, sharing a breathalyzer may invalidate any warranty or guarantee associated with the device. To ensure reliable and accurate results, it is recommended that each individual have their own personal breathalyzer. This will not only maintain proper hygiene and accuracy but also allow users to track their own alcohol consumption over time.