best swamp cooler location

[Roaddude]

Having finished the camper structural build, i'm now thinking about add ons, including evaporative cooling. Key question is: do these things work best recirculating air inside the space, or should they be mounted in a window or vent where they can pull in and cool fresh air in from outside the camper?

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You might find parts, or all, of this interesting, from a guy who lives in the Chihuahuan Desert full-time, is quite clever, and has made several 12v swamp coolers for folks out there. He may have other vids in his channel about swamp coolers he's made, too:


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Here's a search result for his channel with more vids on swamp coolers, including more on the one he's talking about in the vid above:
https://www.youtube.com/c/TheFieldLab/search?query=swamp cooler


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