Move files but not folders

Hazeltonians!
I have a ScanSnap scanner that stores all files in a local folder on my Mac. I want Hazel to move the files to a NAS drive. However, ScanSnap creates a "Backup" folder under the main folder where the scans go. I'd like to create a Hazel rule to move all the scans (regular files) but not Backup or any other subfolders.
How can I do that?
I have a ScanSnap scanner that stores all files in a local folder on my Mac. I want Hazel to move the files to a NAS drive. However, ScanSnap creates a "Backup" folder under the main folder where the scans go. I'd like to create a Hazel rule to move all the scans (regular files) but not Backup or any other subfolders.
How can I do that?