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As a side note, it's nearly impossible to buy a dual-hose portable AC in the UK and Europe. For whatever reason, the market has converged on inefficient single-hose portable ACs.
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As an oblivious Europian I was breaking my head on how the design with a single hose could be considered good enough.

Other funny stuff:

- I haven't seen a single portable AC with a hose long enough to reach the window. Some come with tents and plastic things to seal the open window. The machine blows hot air out of the tube and air from outside is inevitable sucked in. If you could only hang the tube a few feet out of the window it wouldn't be sucking in the exhaust hot air back in.

- I've seen dozens with barely readable labels on the buttons in poorly contrasting colors. Some also have bright glowing leds next to the illegible text. Even if I switch on the lights (in the middle of the night) I cant read it because the leds are to bright. The buttons are spread out in some artistic arc with a nearly invisible fine line and lack a bump in the sticker they are made from.

- People here seem to love swamp chillers, some wet sponge or fabric with a fan pointed at it. Not sure what the ratio is, I think they roughly increase humidity by 10% for each 1C in temperature reduction with some favorable sweet spot above 90% humidity.

Then I see a video from an Amish dude hanging soaked bed sheets in front of the window explaining they don't have AC, they don't even have electricity, the wet sheets cut the temperature by 10 degrees apparently.

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