Some fans are “too expensive”, others suffer from several technical imperfections. Naturally, these come from being made cheaper, but there is also an attempt to strike a sort of… balance. This, for example, from BeQuiet!, with its Pure Wings models. We compared the latest variants with serial number 3 (Pure Wings 3) in detail with massive competition in 120mm format. And they can be described as the most perfect in history. Undoubtedly.
Explanatory note: For a quick overview of how manufacturers “spice up” specifications, we have a sort of “truthfulness” coefficient. We calculate this by putting our measured values in proportion to those given in the specifications by the fan manufacturers. A result of “1.00” means that the claimed parameters match the values we have recorded. After such a finding, we can conclude that the manufacturer has done his job honestly and the way he presents the fan agrees. The more the coefficient number is different from 1.00, the less accurate the claimed specifications are. Of course, the better case for the user is if the coefficient is higher than 1.00 (and it is, for example, 1.20), then the real parameters exceed the paper ones. Conversely, if the coefficient starts with zero, then the fan does not reach the parameters on paper. For example, a value of 0.80 means that the real airflow or static pressure is 20 % lower than the manufacturer claims. If a value is missing from the chart, it is because the fan manufacturer does not specify the airflow or static pressure.
