THIS FAN IS NOT SATISFY THE BASIC REQUIREMENT . I HAVE USED THIS FAN AFTER BUYING BUT AS I THOUGHT ABOUT IT DOES FULFIL THE CRITERIA FOR THE FAN . I HAVE WASTED MONEY IN THIS PRODUCT . IT SERVICE IS ALSO NOT SO GOOD .WHEN I ASKED ABOUT THE QUALITIES THIS FAN THEY TOLD ME IT IS GOOD PRODUCT BUT WHEN I USED THIS PRODUCT AFTER BUYING. I DISAGREE WITH THIS PRODUCT . ITS COOLING IS NOT UP TO THE MARK . ITS SOUND IS MINIMAL . SPEED OF THIS FAN IS VERY SLOW . IT NEEDS HIGH MANAGEMENT. WHO SO EVER WILL BUY IT HE WILL MAKE A GREAT LOSS ABOUT IT . It is also expensive fan