Abstract: A humidifier includes a housing assembly which defines a water reservoir, an air inlet, and air outlet, and an opening. The humidifier also includes a wicking element that is insertable and removable through the opening defined by the housing assembly. A blower for causing air to flow through the air inlet, through the wicking element, and through the air outlet is also included in the humidifier. Furthermore, when the wicking element is inserted into the humidifier, it substantially closes the opening it was inserted through and is in fluid communication with the water in the water reservoir.