I've saw this one on ebay, and I dont think it will work for high humidity region, such as QLD. Personally, i don't recommend to buy any Evaporative Air Cooler under 20L, unless you put all ice into the water tray. For my experence, all this kind of cooler is noisy from their water pump if you put in door (whatever size is the same noise level). :D
Devanti has got so much negative reviews on their portable air-conditioner, mainly is not cool enough, easy to broken down, bad service, design and made in china. I avoided the portable one and this Evaporative type is in a bargain price.
60L, $224, 5000 m³/h, model 2
45L, $174, 2000 m³/h, model 1
There is also other brand Maxkon and Carson (looks like the same design from other big sellers)
Maxkon, 45L, $260, 5000 m³/h
Carson, 55L, $192, 3000 m³/h
Enjoy the hot summer day :D
How do these evaporative coolers compare to a bucket of ice + fan?