Closest thing I would know of, that can be found, is the Yate Loon D14SH-12, and use a fan controller, though the Yate Loons are not the best quality (compared to say Delta, or Sanyo Denki). I got 12 last week but have not had a chance to play with them.
It seems like there are plenty sub 70 cfm fans, then the 140 cfm Yate Loons, and then things like Delta's 140mm lineup.