When the advance team arrived, they specifically brought along gas masks. Luo'er estimated that if things went well, roughly eighty percent of the equipment for the new legions outside would also be issued with gas masks. This piece of military equipment that originated from World War One remains an essential item for armies around the world. However, the headquarters assisting in establishing the new legions for the Church Court this time must likely be using specially customized masks, not the ones from storage.
In order to secure Lipei's Otherworld Gate, headquarters can be said to have pulled out all the stops this time. They've setup a special production line to provide corresponding equipment for the Church Court armies, which includes anti-chemical suits and newly designed armor.