Updated review (old review below)
Received a replacement fan promptly , nee fan is great !! Works well- must have just had a lemon. Very powerful!! Love it !!!
Customer service was excellent, my problem was solved with one phone call. Customer service rep (sorry, forgot your name) was friendly, professional and helpful. 
Thanks again!








Arrived broken. Fan has clasps which hold front and back fan cages together, made to be able to remove front  cage for blade cleaning etc. The clasps work but the problem is that the back cage isn’t attached to its rim !! All the way around the fan each joint is broken- so impossible to safely keep the front and back cages attached! Very cheap weld at the joints. Don’t buy !
Very disappointed. Will be requesting refund .