Just figuring it out
Join Date: Dec 2019
Location: El Dorado Hills, CA, USA
I know of Jet, WEN, and Powermatic at least that make such fans, probably others as well. My sense is Jet is the most popular, just from the number of times I see it mentioned. I Have the Jet AFS-1000B.
On air flow, you want this fan to be able to cycle your shop several times an hour. So do the math, you'll end up needing around 1500-2000cfm to meet that. Be aware they will all have variable speeds, and the CFM rating is of the fan blower itself, when on max speed, and with no filter(s) installed. And also keep in mind that this fan in no way replaces dust collection from tools. At best it augments the air quality of the particles that don't get picked up from your dust collector.