Dry powder inhalation: The micronized drug or/and carrier is in the form of single-dose or multi-dose storage, using a special dry powder inhalation device, and the patient actively inhales the powdered drug.

Nebulized inhalation: The medicated solution, emulsion or suspension is placed in a special device, and the contents are released in a mist with the aid of an appropriate atomizing system during use for patient inhalation.

Quantitative inhalation aerosol: Dispense the medicated solution, emulsion or suspension together with a suitable propellant into a pressure-resistant container with a special valve system, and use the pressure of the propellant to spray the contents into a mist. Out.