its been 10 days since im using this air cooleronce it is on we can feel cool breeze in 10minbut we feel humidity if we use it for more time which is common with air coolers easy to move and fill water cooler need to be drained often knob is down below near wheelsediting here after 3 months use i used hard water for 3months with frequent draining after 3months pump stopped pumping water and releasing hot air once it is oni opened and cleaned pads pump and water distribution pipes