After 5 years, one of the most memorable Fan Showdown entries is back. The original bladeless fan amazed everyone by moving air without traditional fan blades. Now its creator has returned with an improved design, taking advantage of this season's new two-fan format by building both an intake and an exhaust version to see if it's finally capable of cooling a CPU. But that's not all. This episode also features one of the most requested fan concepts I've ever received—an all-metal PC fan—along with several other incredible community-designed creations competing to outperform a standard Noctua fan. Can a fan with no blades really cool a CPU? Can aluminum beat plastic? And which design will come out on top in Fan Showdown?