| abstract |
The present invention relates to a personal protection device, for example a helmet, comprising a breath analyzing system suitable to be provided in a helmet. The breath analyzing system comprises a breath analyzer, a proximity sensor, a communication unit and a flow control assembly arranged to alarm if the breath concentration of a selected intoxicating substance exceeds a predetermined value. The breath analyzing system has a low power inactive mode and an active mode and the proximity sensor is arranged to detect if the personal protection device is worn, and if so, the system changes to an active mode the breath analysis is initiated. The active mode includes initiating an active element of the flow control assembly. |