Pressure dosing aerosol is suitable for the treatment of various bronchial asthma patients, and its advantages are small size, easy to carry, can be repeated dosing, and does not require regular sterilization. However, the disadvantage of pressure dosing aerosol is that it requires high operating skill for the user, and it is difficult for young children and the elderly to master the operation process. If they cannot operate it correctly, it will cause the drug not to be completely inhaled, and therefore they cannot get a good therapeutic effect.
Pressure quantitative aerosol + storage tank is based on the aerosol increased storage tank, the patient through the storage tank inhalation of drugs, can make up for the shortcomings of the aerosol, to increase the amount of inhalation of the drug, and can reduce the occurrence of adverse reactions. This device is easy to operate, and young children and the elderly can inhale the medication comfortably with calm breathing, and can obtain a better drug treatment effect.
Dry powder inhalers use the patient's inspiratory action as the power airflow, the use of the method is easier than the pressure dosing aerosol, but there is a need to have a certain inspiratory flow rate requirements, inhalation of the lower respiratory tract of the amount of medicine is generally higher than the pressure dosing aerosol.