efficient and very pleasant

... And silent.
1 m distance it blows pleasantly on my face, it helps to breathe, immediate anti-stress effect.
Avoid smaller fans "gadget" that blows anything, even when we put a paper in front.
Originally I had bought to cool my PC, I found the best solution that refroidissantes shelves where we put his computer on, the air below is in any way too hot, it is better to bring the Rates from outside.
It's prettier than the picture, adjustable, well built with small rubber anti-vibration pads.
I will offer my good old dad who is always in front of his computer.