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HandWiki. Primary Life Support System. Encyclopedia. Available online: https://encyclopedia.pub/entry/34131 (accessed on 22 September 2026).
HandWiki. Primary Life Support System. Encyclopedia. Available at: https://encyclopedia.pub/entry/34131. Accessed September 22, 2026.
HandWiki. "Primary Life Support System" Encyclopedia, https://encyclopedia.pub/entry/34131 (accessed September 22, 2026).
HandWiki. (2022, November 11). Primary Life Support System. In Encyclopedia. https://encyclopedia.pub/entry/34131
HandWiki. "Primary Life Support System." Encyclopedia. Web. 11 November, 2022.
Primary Life Support System
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The content is sourced from: https://handwiki.org/wiki/Astronomy:Primary_Life_Support_System

A Primary (or Portable or Personal) Life Support System (or Subsystem) (PLSS), is a device connected to an astronaut or cosmonaut's spacesuit, which allows extra-vehicular activity with maximum freedom, independent of a spacecraft's life support system. The PLSS is generally worn like a backpack. The functions performed by the PLSS include: The air handling function of a PLSS is similar to that of a diving rebreather, in that exhaled gases are recycled into the breathing gas in a closed loop. When used in a microgravity environment, a separate propulsion system is generally needed for safety and control, since there is no physical connection to a spacecraft.

life support physical connection air handling

References

  1. Jones, Eric M. (January 3, 2006). "PLSS Technical Information". Apollo Lunar Surface Journal. NASA. http://www.hq.nasa.gov/alsj/plss.html. Retrieved 2006-11-03. 
  2. "Primary Life Support Subsystem (PLSS)". nasa.gov. Hamilton Sundstrand. https://www.hq.nasa.gov/alsj/LM15_Portable_Life_Support_System_ppP1-5.pdf. Retrieved January 5, 2016. 
  3. Wilford, John Noble (July 1969). We Reach the Moon. New York: Bantam Books. pp. 221–222. 
  4. Alptekin, Gokhan (2005-08-01). "An Advanced Rapid Cycling CO2 and H2O Control System for PLSS". NASA. http://sbir.gsfc.nasa.gov/SBIR/abstracts/04/sbir/phase2/SBIR-04-2-X3.01-8100.html. Retrieved 2007-02-24. 
  5. Heather, Paul; Alptekin, Goekhan; Cates, Matthew; Bernal, Casey; Dubovik, Margarita; Gershanovich, Yevgenia (2007). "Development of a Rapid Cycling CO2 and H2O Removal Sorbent". 37th International Conference on Environmental Systems. Chicago: NASA. https://ntrs.nasa.gov/search.jsp?R=900593&id=4&qs=Ns%3DPublicationYear%257C1%26N%3D34%26Ne%3D26. Retrieved 2007-02-24. 
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