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Before the dirty laundry can be ejected into space, it has a tendency to pile up. According to NASA, all of these dirty garments can cause storage and weight problems, and lint from cotton fibres can clog filters. Then, there's the smell.

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Fortunately your sense of is dulled in space, so they probably can’t smell much. https://youtu.be/o6nhTeLO5yY

I’m not sure about the comment on the cotton fibres. Garments in storage don’t just shed fibres, they need to be agitated. A non-woven storage bag would solve that.

The cosmonauts I have spoken with personally have said the ISS stinks of human bodies and other things. It's also very noisy 24 by 7, and there is constant air movement. Three things they did not expect.

What other good stories have you heard from them?

Every sound is transmitted across the entire structure. There's no foundation or outside air for vibrations to attenuate into so sound travels very easily.

I asked an astronaut what it smells like in space. He said, “Ever been camping?”

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