- a swirl chamber (15) for accommodating a capsule and for swirling the capsule content-at least one air introduction channel (13) , and at least one air discharge channel (14), wherein the air introduction channel (13) and the swirl chamber (15) and the air discharge channel (14) are in fluid connection and wherein the air introduction channel (13) and the air discharge channel (14) extend at least partially in opposite directions. The invention further relates to mehods for inhaling an active ingredient contained in a capsule.