An inhalation device includes: a chamber for intermediate storage of an aerosol, a first connection for a nebuliser that produces the aerosol, a second connection on a patient side for delivering the aerosol, and a third connection for breathable air, where the chamber is fluidically connected in a valve-free manner on an inlet side to the first connection when the nebuliser is attached, and the chamber is connected to the third connection in parallel on the inlet side via an inlet valve so that the breathable air from the third connection flows into the chamber.