Since prototyping the -0.1 model in 2022, we have continued to make improved prototypes from prototypes 1 to 5 since 2023.
The photo on the top page is the -1.0 prototype.

Fig.1 GVL prototype No. 1
　 The rotor speed and purge pump flow rate can be adjusted, and the process air volume has been increased and adjusted.

Fig.2 GVL prototype No. 2
　 To improve heat resistance, the body material has been changed from polystyrene foam to polypropylene foam.

Fig.3 GVL prototype No. 3
　　To improve heat resistance and strength, the main body was prototype using a polyurethane foam insulation sandwich panel.