Know what burns
before you build.
NASA microgravity fire research, organized by where crews will live.
Oxygen outlook · ISSSource: challenge brief
±0%
Oxygen concentration vs. Earth air
Earth-normal oxygen.
Same oxygen fraction as Earth air. Microgravity still changes how flames spread, because hot gases don't rise.
Oxygen partial pressure
3.09 psi
ISS
3.09 psi
Earth sea level · 21% O₂ · 14.7 psi
ISS
Earth · 21%
0% O₂
40% O₂
Atmospheres are from the NASA Space Apps challenge brief. This is context for reading the research, not a validated engineering risk model.
AI risk assessment.
Checks this habitat's atmosphere and your materials against the indexed NASA combustion papers.
The AI backend isn't connected, so assessments can't be run right now.
No assessment run yet for ISS.
Evidence for this habitat.
View all 13Sorted by the highest oxygen level each experiment tested · from extracted test conditions
- 01 CFI Other Reaches 21% O₂ Tested at 13–83% O₂ · 13 papers · 54 findings
- 02 SAFFIRE I Prevention Reaches 21% O₂ Tested at 21–31% O₂ · 6 papers · 19 findings
- 03 FLEX Suppression Reaches 21% O₂ Tested at 12–30% O₂ · 11 papers · 17 findings
- 04 ACME Other Reaches 21% O₂ Tested at 25% O₂ · 7 papers · 27 findings
- 05 BASS Prevention Reaches 21% O₂ Tested at 13.6–22% O₂ · 8 papers · 47 findings
- 06 FLEX-2 Suppression Below 21% O₂ Tested at 12.5–15% O₂ · 8 papers · 8 findings