Airpath is rated at 6500 so quite a bit. They are working on increasing it with a goal of 10,000 cfm. There can be alot of fluff in those numbers. For years we were told traditional airmover were 3000 cfm when they were actually 1000-1200. I'd definitely want to see the cheaper ones work before I bought one. I'd also like to see the Airpath work but I'm surrounded by BDCC. Brian E