Bag for filtering lint and dryer with such a bag

Bag (1) for filtering lint from a process air flow of an electric household appliance such as a clothes dryer having a rotatably mounted drum in a housing, the process air flow, inter alia, via a between the drum and a heat exchanger interposed as a flow channel of air guide (2) flows, wherein said bag (1) with its opening (10) on the air guide (2) is insertable, characterized in that the bag (1) from the blank creates a front and a rear filter surface (16) and (17) each having two filter surface areas (14) and (15), which form a top horizontal bag opening in the assembled state (10), said upper first filter surface area (14) is thus formed on its surface side and from its bag volume, larger than the under it followed by a second filter surface area (15) with its engaging bag volume.