Fan makes a whirring/rattling noise when powered on right out of the box. The noise will go away if I hold the fan upside down or at the right angle... I bought this for climate control at work and it has ended up being more of a noisey nuisance than anything. The low setting on the fan is a joke, I can use a piece of paper as a fan and get more CFM. The low setting also produces the whirring/rattling noise which is much more noticable. It is very disappointing considering the good things I've heard and experienced from other products offered by Vornado. I would not buy this fan again or recommend it to anyone.