Special arrangements to be made for the use of the ignition interlocks and portable breath testers to avoid any contamination.

  1. Change the mouthpiece with each breath test.
  2. Use a new mouthpiece with each breath test.
  3. If the mouthpiece is not fitted with a non-return valve do not breathe into the mouthpiece when it is connected to the device. It is only necessary to blow.
  4. Once the breath test is complete put the mouthpiece and its packaging in a plastic bag intended to be put in the trash as soon as possible.
  5. If the device has been handled by another person, clean the device with a wipe containing an alcoholic solution and wipe well (note that alcohol vapors can lead to false positives). Be sure to wait few minutes before taking another test.
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