A humidification assembly includes a housing that has a first end, a second end and a peripheral wall extending therebetween. The first end and the second end are open. The housing is substantially hollow. The peripheral wall is curvilinear such that the housing has a cylindrical shape. The first end may insertably receive a hair dryer. A gasket is coupled to an inside surface of the peripheral wall. The gasket may frictionally engage the hair dryer air outlet to retain the housing on the hair dryer. A reservoir is provided to contain a fluid. The peripheral wall has a fill aperture extending into the reservoir. The fill aperture directs the fluid into the reservoir. A closure removably closes the fill aperture. A valve is movably coupled between the housing and the venturi. The valve selectively releases the fluid into the venturi to humidify the air urged by the hair dryer.