It is light, efficient and puts out a lot of air. I really appreciate this fan.
Very quiet. I use this fan at my bedside and it never disturbs me. I would definitely purchase again!
It's 4 inches and is the perfect size for personal use. I have another Opolar fan which I like better, but couldn't find it this year. So, I ordered this unit and it's a reasonable substitute.
OPOLAR Office Quiet Desk Fan | 4/5/6-Inch