Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Evaporative Air Cooler Fan

This portable evaporative cooler fan is easy to use. We used it in our bedroom in hot day nights. It was capable to create a comfort environment when the fan swung to delivered air with the cooling cycle was on. There was a timer to turn off the machine with pre-set time from 0.5 to 7.5 hour that was quite useful. We adjusted the fins of the machine so that the air blew at the level of our bed and swung around. One thing we did was to lower the air speed to medium as to reduce the noise level. In fact the noise level at high speed was much lower than those window intake fans however, we need a more quiet environment during sleep. We turned on the ionizer. We could feel there was a little different smell. It was OK with me but my wife did not like the smell so we turned it off. Overall speaking the performance of this machine was to our satisfaction and we like it.