BREATH- TRIGGERED INHALER WITH DOSE COUNTER

摘要

The invention relates to an inhaler for powdered substance. The inhaler comprises a transfer member which is displaceable in a substance storing chamber and which comprises at least one dosing chamber for taking up substance from the substance storing chamber and moving it to a flow passage. The transfer member, during its displacement, engages with a dose counter for advancing the number count. The dosing chamber is evacuated by an overpressure in the flow passage.