I picked up one of these, only to discover another one buried in the bowels of the van
This is the latest one,it has a misting effect, it's operating voltage is 12V x 220V ,but I had a multi adapter for the Cig socket so it can work off the 12V no need for EHU or inverter.
The older one came with a 220V to usb-c. but it's operating voltage is 5V. so now it can be used from a wall mounted 5volt USEB socket.( USB to USB-C cables weren't readily available when I got it )
They both worked well with the van closed down for the night, comfortable enough to sleep,with the daytime Tempt, over 36 deg
I also picked up an oscillating tower fan 220V x 36 Watt, no problem using it off the Inverter, it worked well moving the air around and quite enough at night, to sleep.