In the 2015 competition, we had problems with our air samples caused by our procedure of establishing a vacuum inside of the containers shorty before the Launch Campaign. The vacuum didn't last long enough for the samples to be secured doring the flight and our search of the CanSat.
Vacuettes carry a great advantage for us: They are pre-evacuated, so we can use them without having to modify them. They are also much more leakproof than the syringes that we used the last time.
