Need help finding 12cm fan
Thats one of coolermaster's 12cm fans
i dunno the specs but I know that CM rocks and it never disappoints.
If you want LEDs, these are potentially the best.
Stock specs: 1800 RPM, 69 CFM, 19 DBA
If you use a fan controller, you can bump them up to 2000 RPM, giving you close to a 90 CFM value at only a little bit louder (they claim 23 DBA).
If you don't care for LEDs, go for Scythe S-Flex fans. They're quiet, reliable, and move a good amount of air for their speed. Do NOT go for Scythe Slipstream fans. They're unreliable turd fans.
what about fan filters? don't want a vaccum cleaner :D:D