#primary_life_support_system
Primary life support system
Life support device for a space suit
A primary life support system (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. A PLSS is generally worn like a backpack. The functions performed by the PLSS include:Regulating suit pressure Providing breathable oxygen Removing carbon dioxide, humidity, odors, and contaminants from breathing oxygen Cooling and recirculating oxygen through the pressure garment, and water through a Liquid Cooling and Ventilation Garment or Liquid Cooling Garment. Two-way voice communication Display or telemetry of suit health parameters Telemetry of an indicator of the wearer's immediate health
Thu 29th
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