https://capstones.engineering.asu.edu/project/flexivalve-engineering-portable-adaptive-valved-holding-chambers-for-pmdi-users/
FlexiValve: Engineering Portable Adaptive Valved Holding Chambers for pMDI Users - Capstones
Apr 27, 2026 - FlexiValve is an applied design project developing a portable, flexible valved holding chamber for asthma and COPD patients who use pressurized metered-dose...
holding chambersflexivalveengineeringportableadaptive