Black + Blum Propello

1. Amazon.com

Amazon.com is the only site we found with consumer reviews of the Propello. Still, the fan gets just a handful of reviews, with an overall 3-star score. While all reviewers say the fan is very stylish, they don't all agree on its effectiveness. With only one speed setting, one user says it's too powerful to have on a desk and must be kept across the room, and another says it's too loud on its only setting.. All owners say the construction is very high quality and the fan seems very sturdy, though one reviewer says the motor can produce more heat than the fan cools.

Review: Black+Blum Propello 12-3/4 by 12-3/4 by 6-1/2-Inch Desk Fan, Grey, Contributors to Amazon.com

2. CNET

Jean Aw rounds up 10 stylish (mostly designer) fans that she says are both effective and easy of the eyes. While she says the Propello is quiet and praises the soft rubber blades, it's not clear how the fan was tested. This fan is listed first of the 10, but it isn't obvious whether this is a ranking or coincidence.

Review: 10 Less Than Ordinary Fans to Keep Cool, Jean Aw, June 27, 2007

3. Apartment Therapy.com

ApartmentTherapy.com lists several "well designed" fans, providing a photo of each one -- but there's no discussion of performance and no indication that the fans were tested. While the review is relatively recent, several products are discontinued.

Review: Best Table Fans 2011, Mat Sanders, July 27, 2011