Mini Swamp Cooler (Arctic Air) - Legit?

The tiny one that the OP refers to will do next to nothing for an RV. It is somewhat useful for sitting on a desk blowing directly on you while you are working, but that's about it (yes, I have one). It has the water tank on top (not the bottom) and utilizes a small "fogger" nozzle (no "wicking") to help keep the pads moist (after pre-wetting them), but is nowhere near the same as the water drenched pads used on an actual evaporative (swamp) cooler (which is what I use to cool my house). I got my "Arctic Air" as an open-box unit at Home Depot for $30; IMHO it is worth about $15-$20 on a good day, but certainly not $40.:R

I do notice that the ads are now correctly calling the unit a "cooler"; rather than an "air conditioner". They likely got into some trouble for that earlier false advertising.