Abstract: A chromatography device having a housing formed from an upper housing ultrasonically welded to a lower housing. A compression extension and a boss located inside of the housing with the media disposed between the compression extension and the boss such that a perimeter of the media is compressed between the compression extension and the boss forming a liquid impermeable seal along the perimeter after the upper housing is ultrasonically welded to the lower housing.

Abstract: A charged depth filter for removing cells and/or cellular debris from a biopharma feedstock having a first functionalized nonwoven layer having a first calculated pore size and a first dynamic charge capacity; a second functionalized nonwoven layer having a second calculated pore size and a second dynamic charge capacity positioned after the first functionalized nonwoven layer in the direction of the biopharma feedstock flow, and wherein the first calculated pore size is greater than the second calculated pore size, and the first dynamic charge capacity is less than the second dynamic charge capacity.

Abstract: A chromatography device having a housing having an inlet and an outlet. At least two layers of media disposed between the inlet and the outlet inside of the housing forming a media stack, and wherein at least one of the layers comprises a functionalized layer. A spacer ring disposed between at the least two layers of media forming an air gap between them.

Abstract: A chromatography device having a housing having an inlet and an outlet. At least two layers of media disposed between the inlet and the outlet inside of the housing forming a media stack, with at least one of the layers comprising a functionalized layer. An optional spacer ring disposed between the two layers of media forming an air gap between them. A non-functionalized sealing layer disposed between the inlet and the outlet inside of the housing as the last layer of media in the media stack within the housing as a fluid passes from the inlet to the outlet through the media stack. A margin of the sealing layer in contact with the housing; the margin being compressed by the housing forming a compressive seal to prevent fluid from leaking to the outlet past the compressive seal.

Abstract: A chromatography device having a housing formed from an upper housing ultrasonically welded to a lower housing. A compression extension and a boss located inside of the housing with the media disposed between the compression extension and the boss such that a perimeter of the media is compressed between the compression extension and the boss forming a liquid impermeable seal along the perimeter after the upper housing is ultrasonically welded to the lower housing.