An inhaler for inhaling a liquid pharmaceutical formulation, said inhaler comprising: - a mouth piece portion comprising a circumferential wall (102a, 102b) extending from the edges of an inhalation opening, said circumferential wall (102a, 102b) enveloping a lumen, and - a body portion coupled to the mouth piece portion, the body portion comprising a body with a base, said base facing the lumen and defining a limit of the lumen of the mouth piece portion said body further comprising: i) a nozzle comprising a nozzle inlet at a first end of the nozzle for receiving a liquid pharmaceutical formulation and a nozzle outlet at a second end of the nozzle for discharging said pharmaceutical formulation, wherein the nozzle passes through the base and a portion of the nozzle comprising the nozzle outlet extends into the lumen, ii) a counter electrode arranged at the base at a counter electrode distance from the nozzle outlet, said counter electrode distance defining an electric field path, iii) a discharge electrode comprising a discharge portion (176a, 176b, 176c, 176d, 176e, 176f), said discharge portion (176a, 176b, 176c, 176d, 176e, 176f) at a discharge electrode distance from the nozzle outlet, wherein the discharge electrode distance is larger than the counter electrode distance; the inhaler further comprising: - a power supply electrically connected to at least one of the nozzle, the counter electrode and the discharge electrode, and - an air inlet for allowing air for inhaling to enter the lumen; characterized in that the counter electrode is arranged at the base relatively close to the nozzle and the discharge portion (176 a to f) is arranged relatively far from the nozzle 133 as compared to the counter electrode 152, and in that the counter electrode distance is adjustable. - a mouth piece portion comprising a circumferential wall (102a, 102b) extending from the edges of an inhalation opening, said circumferential wall (102a, 102b) enveloping a lumen, and - a body portion coupled to the mouth piece portion, the body portion comprising a body with a base, said base facing the lumen and defining a limit of the lumen of the mouth piece portion said body further comprising: i) a nozzle comprising a nozzle inlet at a first end of the nozzle for receiving a liquid pharmaceutical formulation and a nozzle outlet at a second end of the nozzle for discharging said pharmaceutical formulation, wherein the nozzle passes through the base and a portion of the nozzle comprising the nozzle outlet extends into the lumen, ii) a counter electrode arranged at the base at a counter electrode distance from the nozzle outlet, said counter electrode distance defining an electric field path, iii) a discharge electrode comprising a discharge portion (176a, 176b, 176c, 176d, 176e, 176f), said discharge portion (176a, 176b, 176c, 176d, 176e, 176f) at a discharge electrode distance from the nozzle outlet, wherein the discharge electrode distance is larger than the counter electrode distance; i) a nozzle comprising a nozzle inlet at a first end of the nozzle for receiving a liquid pharmaceutical formulation and a nozzle outlet at a second end of the nozzle for discharging said pharmaceutical formulation, wherein the nozzle passes through the base and a portion of the nozzle comprising the nozzle outlet extends into the lumen, ii) a counter electrode arranged at the base at a counter electrode distance from the nozzle outlet, said counter electrode distance defining an electric field path, iii) a discharge electrode comprising a discharge portion (176a, 176b, 176c, 176d, 176e, 176f), said discharge portion (176a, 176b, 176c, 176d, 176e, 176f) at a discharge electrode distance from the nozzle outlet, wherein the discharge electrode distance is larger than the counter electrode distance; the inhaler further comprising: - a power supply electrically connected to at least one of the nozzle, the counter electrode and the discharge electrode, and - an air inlet for allowing air for inhaling to enter the lumen; - a power supply electrically connected to at least one of the nozzle, the counter electrode and the discharge electrode, and - an air inlet for allowing air for inhaling to enter the lumen; characterized in that the counter electrode is arranged at the base relatively close to the nozzle and the discharge portion (176 a to f) is arranged relatively far from the nozzle 133 as compared to the counter electrode 152, and in that the counter electrode distance is adjustable.