Thumb Score: +22

Monster sized 18″, 4000 CFM Barrel Fan (compare that to the other Dewalt 20v fan that is 640 CFM)

Can run on 20v battery or 120vac

5 year warranty

Brushless motor

Fan only, no batteries or charger included.

Product name DXF1850b has an X in it, so that means that another company has produced this for DeWalt. Probably why you get a 5 year warranty compared to the normal 3 year.

–
Hybrid Power Options: Operates on 20V MAX batteries (sold separately) or AC plug-in adapter for ultimate flexibility.