Homo-Salticidae
When the same tests are performed under their native levels of oxygen, endurance is about seventy-seven percent.
Trapped Part 1
I know it has oxygen" "why didn't you tell anyone?"
A Final Gasp (quicky snuff gassing)
It didn't hurt as much as she thought, as her breaths wheezed in reflex to the lack of oxygen. she was already dead, she knew that, even earlier then when she had entered this room.
D.E1 Chapter 44 The Hive Part II
This section had richer oxygen concentrations and it was certainly fitted for organic life forms to survive. there was some carbon dioxide detected as well, giving hints that this place had oxygen breathing creatures.
Dr. Change's First Subjects
The oxygen smelled and tasted sweeter but he was only imagining this because he was glad the oxygen had kept him from passing out during the process.
VTQ: A Tight Squeeze
My eyes having a hard time staying open as the lack of oxygen made it hard to stay conscious, that was until i saw it. the snake's head in front of my own, it's tongue flicking out of it's mouth, tasting the air around me as well as my scent.
Fifth official character
After such training she was given her own planetary ship the inside based off annund ground world with lakes oceans and underground plant life that provide oxygen.
Six Feet Under
I need to save oxygen. dammit, i'm crying again. but i'm not dying here. not in this stupid box. shit. if only there's someone i can call. call...call...wait! i can just about reach my hand into my jeans' pocket and...yes! my phone!
Maverick Hunter - Chapter 4
He pulled his blade back, severing the oxygen line it was pressed against, flipping the knife in his hand into a defensive position. air hissed noisily out of the hose as the oxygen rushed into the room.
Operation Black Fang - Vulpine Specter PROLOGUE
Mcconnell darted to his right just in time, continuing his serpentine fashion uphill as his body screamed for relief, his muscles demanding oxygen.
Family Love Chapter 8 Battle for Sheena
Soon the oxygen started leaving. "how's the air leefal?" logan asked with an evil grin. "i.....can't......breathe!" leefal fell down, trying to find oxygen in the dense, cold air. "logan stop! you're going to kill him!"
Lunar Cargo by ChakatTailswisher
If they hadn't died in the crash and had on emergency suits that hadn't been punctured they would only have about 20 minutes of oxygen.