I bought this as now I'm a 'bit' of a mature lady I tend to have episodes of hot flushes meaning I need a good fan to cool me down.
This little unit is fab just fill the top with water and ice and the coldness produced from the mist is really refreshing and cooling.
I cannot comment on how it would cool the whole room as it is right next to my bed, virtually on top of me but boy do I know when it's on. It has 3 speed modes I have it mainly on the highest as I always have done with any fan.
It is also pretty quiet so I can leave it on whilst I sleep without it disturbing me.
It's easily portable just charge it up and go. It doesn't have a lid to hold the water which I was a little surprised with but it didn't really affect me it's not as if I am going to be carrying it around mid use.
Would easily recommend this product don't know how I ever slept without it!