An aerosol powder delivery device 100 comprises a cavity 103 between upstream 110 and downstream 140 filters. An aerosolizable powder 120 and a second powder 130 to mechanically break or loosen aerosol particles from the aerosolizable powder are provided in the cavity. Thus, a small, lightweight, simple, sealed and stable device without complex moving parts, external power sources or heat is provided to aerosolize powder into aerosol particles for transmucosal delivery into a mouth upon inhalation. A method of producing or delivering aerosol particles, a method of making a delivery device, and an inhaler kit are provided also.
