Need a quite fan under $20

I need to get the best fan for under $20 that is quite! Could you list the best 120 mm and the best 140 mm fans that are quite? Thanks in advance!

Akasa Viper - awesome fans, available in 120mm and 140mm, 112cfm @ 24db with 3.12 pressure - 10 - 15 bucks depending where you get them

Could you link some please?

Scythe Gentle Typhoons are supposed to be good.

 

And, of course, there's the obligatory noctua recommendation.

noctua fans under $20? where? Buy all of them quickly before the sale ends!

Noctua fans are too expensive. And too ugly.

Noiseblocker eLoop B12-2. Don't use them in pull on a rad or CPU cooler. Because of the special design of the blades the air exiting the fan creates an annoying noise when hitting the radiator fins. But if you use it as an intake in your case (or pull on a rad) you're golden, they are more silent than Noctua. And they are very nice looking.

https://www.youtube.com/watch?v=I8ndhIT5kxY

http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Fans&type_sub=PWM%20Control&model=AK-FN063

and

http://www.ebay.com.au/itm/Akasa-AK-FN063-14cm-Viper-High-Performance-S-Flow-Fan-/231266405511?pt=AU_Components&hash=item35d88d4c87&_uhb=1

 

sorry about the late reply