The disposable Alcoltest NF.
The disposable breathalyzer kit is composed of only two elements: the balloon and the reagent tube. You can easily use it and place it in a bag or a wall pocket.
The balloon certified NF Standard: it has very precise volume (1,3 Liters), so the user has to reach, in only one breath, the air contained in lungs. The air cannot escape thanks to a valve placed in the nozzle.