Better Trash allows you to force empty trash, secure delete file or folder and auto empty Trash. It's designed to help you solve the problem that Trash can't be emptied. Force Empty Trash feature use 5 delete steps to check and delete any item from current user Trash and external disk or volume Trash.
The Secure Delete feature uses the US DOD 7 pass standard to overwrite, it will be more safer than DOD 3 pass standard, more faster than DOD 35 pass standard. You can select Daily, Every week, Two weeks, Monthly, Two month to auto-empty, and you can set the storage limit of Trash to auto-empty.