Meets will normally not have filters, all other pipes may or may not have filters, the way to tell it to take the stem off and if it has a piece of paper or triangle wood in it then it's a filter pipe, as for it being better or worse that's all opinion that's why they make both. Also when buying a pipe online it should say if it had a filter, if not shoot an email to the site owner very one I have ever talked to in the pipe world is very friendly and willing to help.