While I'm at it (and only slightly tongue-in-cheek) if you
don't care about noise, for $16 you can get a fan optimized for suction rated at 600CFM (looks like it might be used to provide suction for a "whole house" vacuum.
It might even be practical to but this thing in the basement and use lightweight 3" ducting (often sold in the US as plastic downspout - really cheap) to duct the suction up to wherever you need it...