MDI Metered Dose Inhalers; DPI Dry Powder Inhaler
Aerodynamic particle sizing
The design concept of the Andersen Cascade Impactor evolves from the following information:
The human respiratory system tract is an aerodynamic classifying system for airborne particles. A sampling device can be used as a substitute for the respiratory tract as a collector of airborne particles, and as such, it shall reproduce to a reasonable degree the lung penetration by these particles.
The IMP-8, 8 Stage “Andersen type” Cascade Impactor ACI, with 400-201-96 small round jets per stage meets all the criteria for the efficient collection of airborne particles.