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Looking at a video from Roscosmos on instagram, Exp. 52 Cosmonaut Sergey Ryazansky carried a blue box with him during his walk to the Soyuz rocket.

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Upon looking at more videos of Astronauts boarding into rockets. I found this video of Apollo 10 Astronauts walking towards the rocket with similar looking boxes that they were each holding.

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So what are these boxes that Astronauts/Cosmonauts carry into the rockets they board?

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  • $\begingroup$ US astronauts carry a pack that provides cooling for their suits, IIRC. No idea if the Russian item is related. $\endgroup$
    – Hobbes
    Commented Jul 28, 2017 at 18:25

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Yes, the Sokol suits are provided with a ventilation unit for use prior to ingress into the spacecraft. "When worn on the ground, the suit is attached to a portable ventilation unit —a hand-held device that supplies air to the suit, cooling it first with an ice filled heat exchanger."

This is a training version of the unit.

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Source

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  • $\begingroup$ Those look like they're built into pretty standard Pelican-style equipment cases. Are the non-training ones different? $\endgroup$
    – T.J.L.
    Commented Oct 24, 2019 at 19:58
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    $\begingroup$ @T.J.L. there seem to be a lot of versions of these. The ones here: space.stackexchange.com/questions/39526/… , the ones in the first picture in the question, and these training units all look different. $\endgroup$
    – Organic Marble
    Commented Oct 24, 2019 at 20:37

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