Wash port assemblies for airway adapters and methods are described. An example wash port valve assembly may include a multi-part housing defining a cavity and comprising a cap portion having a first hardness, and a base portion having a second hardness that has a hardness value greater than the first hardness. The cap portion may define an inlet port and the base portion may define an outlet port. The valve assembly may include an elastomeric valve disposed within the cavity and may be configured to be movably retained within the multi-part housing. The elastomeric valve may comprise a valve tip portion and a valve end portion distal of the valve tip portion. An example airway adapter assembly may include an adapter housing defining a cleaning chamber, and a wash port coupling assembly coupled to the wash port of the cleaning chamber.
