The pressurized metered dose inhaler has been widely used for more than 60 years. How has it evolved, and how might it evolve further?
The pMDI looks set to continue as a very popular inhaler device. In the early 1990s, the pMDI was often seen as inefficient, somewhat old-fashioned, difficult to use correctly and environmentally unfriendly. Today, it is recognizable as the 1956 device, but it contains many modern enhancements and is viewed as durable, adaptable and cost-effective.