Inventors:
Dan L. Fanselow - White Bear Lake MN
Roberto C. Moreno - Inver Grove Heights MN
Thanh H. Pham - Minneapolis MN
Michele H. Kelley - St. Paul MN
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
B01D 2907
B01D 5304
Abstract:
Channel flow filtration media possessing high efficiency and low pressure drop is formed from a plurality of filtration layers at least some of which include a multi-dimensional channel pattern having a plurality of continuous, tortuous channels and a multi-dimensional edge at each end of the plurality of channels formed therein. The filtration medium is configured as a stack with the multi-dimensional edge of the channel pattern forming a plurality of inlets open through a first face of the stack, a plurality of outlets open through a second face of the stack, and a corresponding plurality of disruptive fluid pathways passing from the inlets through the stack to the outlets. The filtration layers may be formed from a non-woven material, such as a carbon loaded multi-layer BMF web capable of adsorption of undesired vapors and odors from a fluid.
