Data in a two column database (A3:B13) can be Auto filtered on column A with one or many conditions. Data in column B will be numbers only (positive, negative or 0’s) – no text values.
After filtering data in column A, one may want to extract the unique numbers from column B to cell A18 (and then downwards). Data from cell A18 downwards should keep changing with different filter conditions specified in the Auto filter drop down of column A.
You may refer to my solution in the this workbook.
To extract unique values from an unfiltered range without any conditions, you may refer to the following link
To extract unique values from an unfiltered range with multiple conditions, you may refer to the following link