its been 6 days that i am using this cooler we have 1515 room after buying this cooler what i love is it has strong solid body so dont worry that it get broken easily you can fill water from front and back and give very cool air my room feel like its december in april i have to use extra blanket in night while sleeping it has capacity of 75 litre water which last for 2 days but i love to run cooler on pump for 1 hour it cool the whole room then only air mode and it gives awesome cool