This is basic functionality and is covered in the training.
If you are new to Postman. I would recommend going through the Postman training if you haven’t done so yet.
Postman Galaxy Training | Postman API Network
Run through the “APIs 101 Training”, then the “Testing and Automation Training” course.
You also need to explain what you mean by filter.
If you want to filter when you submit the request (using params) then this is reliant on the API supporting this method.
If you are talking about filtering the response to retrieve a specific element from the response, then this is covered in the training. (It’s done in the tests tab, which runs after the response is received).
You can have a look at this topic, for an example.