Methods that do filter out fluoride will likely also filter out other minerals that we need, and you don't want that. The minerals in drinking water are important.
The average filters like Pur and Brita cannot, as mandated by law, remove fluoride, at least in the US. You might be able to find a system that reduces levels of fluoride to safer levels, but honestly, you probably don't need to, as you don't even know if your water has it or not and at what levels.
Don't be paranoid about it. Just start an investigation and after learning more, decide what the best course of action is. Don't jump on the alarmist band wagon.