[B]Gratia Mindaro - Armory[/B]

A hermetic seal. That was why the swine Faunus had approached her for? Gratia allowed her gaze to linger on the other student's retreating back for several seconds before she returned to her own work: cleaning the dust and grime off [i]Valens[/i] with a towel. Breathing apparati were not particularly her field of specialisation, but creating an airtight space was not too difficult in the long-run. All that was required was a substance that possessed low moisture and oxygen transmission rates, and from there it could be utilised to hermetically seal whatever object it was being applied to; which, in the case of the teenager that had just approached her, was a breathing mask.

What were the substances being used to construct the mask? That would determine what was necessary to hermetically seal it. The Mistralese teenager had once kept a bag of cheese (a small luxury for her family) air tight after opening it with an empty water bottle, but obviously her method would not have worked on something so important as a mask.

However, it was no longer her problem anymore.

She didn't need to waste her fucking time when the Faunus could figure the shit out for himself.

Quietly, the Huntress pulled out a bottle of oil, applying the most miniscule amount to a rag. She began to wipe it along the entirety of the blade with the practised care of a long-time sword-user, safe in the knowledge that her weapon was once again protected by a new coat of oil.