Disclosed herein are a humidifier and a control method of a humidifier providing with the hygienic humidification since it is possible to completely evaporate water remaining in a water tub because a humidifying element of a humidifier is disposed adjacent to the bottom of the water tub, further, since the humidifier has a structure configured to raise the humidifying element over the water surface of the water tub after the end of the humidifying operation, it is possible to provide the hygienic humidification without contamination of the humidifying element.

An evaporative humidifier includes a main body; a reservoir provided in the main body to store water; and a humidifying element assembly rotatably provided in the main body. The humidifying element assembly includes a humidifying element which is configured to absorb water and perform humidification, and a frame to support the humidifying element, the frame including at least one guider portion which guides the water of the reservoir toward one side surface of the humidifying element.

A filter cartridge for filtering water, for use in an air humidifier, having a storage chamber for storing filter material, and having at least one opening for feeding to the storage chamber and/or for releasing from the storage chamber the water to be filtered is proposed. For the purpose of relatively quick filling, the filter cartridge is formed to be arranged in a container, containing water to be filtered, such that the filter cartridge can project at least partially into the water stored in the container, with the at least one opening formed both as a water inlet for feeding water from the container into the storage chamber and as a water outlet for discharging water from the storage chamber into the container. A roller, an air humidifier and a filtering method are also proposed.