Primary life support system
Life support device for a space suit
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 (EVA) 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 (e.g. heart rate) 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...
Read on Wikipedia · Image Gliu, Public domain
Open boosters, collect cards and trade them. Free to play.
Play for free