ISSlive
Environmental Control & Life Support

Air, water & cabin climate

The systems that keep the crew breathing, hydrated and comfortable: cabin pressure and temperature, the air they breathe, and how urine and humidity are recycled into drinking water.

Updated19:08:13 UTC

Cabin pressure

755mmHg14.6 psi
Normal· target 730–775 mmHg
Last 24h

Cabin temperature

23.6°C74 °F
Comfortable· target 18–27 °C
Last 24h

Carbon dioxide

2.4mmHg
Nominal· target below 4 mmHg
Last 24h · one reading reported
Last reported 2.44 mmHg · 24h ago

Air conditioners

4 of 5 on
  • Destiny · Lab · Port
    On
  • Destiny · Lab · Starboard
    Off
  • Harmony · Node 2
    On
  • Tranquility · Node 3
    On
  • Quest · Airlock
    On
The air they breathe

Cabin atmosphere

746
mmHg total
  • Nitrogen77.4%577.6 mmHg
  • Oxygen22.2%165.8 mmHg
  • Carbon dioxide0.33%2.4 mmHg

Water recovery system

  1. Urine tank51%
    Collected urine, waiting to be distilled
    Urine processor: Normal
  2. Waste water tank56%
    Distillate plus condensation from cabin humidity
    Water processor: Process· Step: Flow
  3. Clean water tank39%
    Purified and ready to drink