Pirogue contains two chambers, an active sampler chamber and a control chamber. Each chamber uses 20 Rotorods coated with a thin layer of silicone grease to capture microorganisms. The rods are held in a custom aluminum bracket and placed inside a Poly Vinyl Chloride (PVC) tube. Each end of the tube has an O-ring that creates a seal against the copper plated doors. Both doors are actuated with a single servo when the payload reaches the target altitude. The two chambers are placed side by side with a single latch locking both doors down.
The entire system is then placed within a foam box. This box helps to protect the mechanical system as well as house the electronics.