OK - so I am in the same boat - er - same pod...
I opened all four things below the seat - replaced the filter - got the medkit, used the pills on myself, got the spork knife spoon thing...
But even with Crump's "foamy" remark... I don't see how to make anything foamy to help with what I have. So I am curious if I am missing an item and stuck at a dead end. Or if there's yet something else to find.
So - the air filter isn't the only thing. Notice the other seats have the same "storage" slot - one will have nothing - the other three have items.
One of those items is for eating.
And when you eat at a dinner table, you are left to take a seat.
The solution crammed into one long word:UsEthEsPorKthInGtOCuTuPthEleFtfRonTsEaTaNdItWiLlReVEaLsOmEthInG
Put a strike through to make it harder to read so you don't accidentally get it revealed before trying something.
