US Patent 11027228 Filtration device and filtration assembly

The present application discloses a filtration device. The filtration device comprises a housing, a lid and a filtration material. The housing comprises at least one outlet hole at a bottom of the housing. The lid is coupled to the housing and comprises at least one inlet hole at a top of the lid. The filtration material is disposed within the housing and comprises a top layer, a particulate treatment layer, an activated carbon fiber layer and a bottom layer. The particulate treatment layer is coupled to the top layer. The activated carbon fiber layer is coupled to the particulate treatment layer. The bottom layer is coupled between the activated carbon fiber layer and the bottom of the housing. A filtration assembly is also disclosed in the present application.