The second option for product filtering is the Advanced product filter, where you can sort the products you would like to keep or remove from the import task.
Start typing the field value you would like to filter, and it will appear in the box. You can add more than one condition. In the summary step of your Import task you will be the result of the filtering, how many products were originally in the task and how many Syncee uploaded based on your settings.
If you do not wish to use the Advanced filtering, feel free to check out Syncee's Basic filtering options.