How do you pass a breathalyzer after drinking?

That's easy. Just have one drink, only. And if you have more than one, don't drive until the alcohol is metabolized out of your system. That's about one hour for every drink, after you stop drinking, if your liver is working properly. For example, if you have six drinks, wait six hours after you stop. But, most people forget how many they've had after two and lose their ability to think rationally and even do the simple math to figure out how long to wait.