Westech Scientific Instruments (Westech) products

A Dry Powder Inhaler (DPI) is designed to deliver a precise measured dose of medication by breath activation. The test procedure measures aerodynamic particle size distribution of the drug leaving the device and can define the manner in which the aerosol deposits in the respiratory tract during inhalation. Aerosol characterization is often used in judging inhaler performance and is particularly relevant in the development of inhalation formulations during research, production, quality assurance and equivalency testing.