In order to start the car, you need to blow clean.

It’s called an ignition interlock and it’s connected to the vehicle, detects blood-alcohol concentration over a preset limit of 0.02 (20 mg of alcohol per 100 ml of blood) and the car won’t start if you blow over.

During the ride, the device also requires the driver to provide random samples while the the engine is running and if the limit is surpassed, the device will record the event and activate flashing lights, horn honking until the ignition is turned off.