It was a simplistic counter strategy towards her poisonous gasses. The knight had pulled two gas masks out of the pouch he carried, to reverse the effect of the poison, and held it in his hands. The masks were items at levels that would close our mouth and nose area, but it seemed unclear how durable it was.
Just then knight quickly handed me one and said,
"Quickly put one. We don't have time to spare to her."
It was somewhat a quick event that occurred, but I did as he said and got my one. And after inhaling just once, the slight effect that the gas caused my brain, vanished away. I was coughing heavily and my head was spinning, while my eyesight was getting blurry before I got the mask. But now this helped me a lot and I was standing much more still than before.