No need for a paper filter, no peering into the mug to see that it's not going to overflow and no need to place the pour over in the sink when it's done dripping. The #NoFilter self-filtering pour over has a filter where the grounds go directly, a second filter that gently disperses the hot water over the grounds, a row of glazed windows in the mug so you can see it filling, and finally a lid that acts as a tray for your pour over while you enjoy your coffee.