CPC B01D 46/522 (2013.01) [B01D 46/0005 (2013.01); B01D 46/523 (2013.01); B01D 46/525 (2013.01); B01D 46/58 (2022.01); B32B 3/28 (2013.01); B01D 2275/10 (2013.01); B01D 2279/60 (2013.01); B32B 2250/02 (2013.01); B32B 2307/724 (2013.01)] | 20 Claims |
1. Filter media comprising:
a first sheet of filter media having a first side and a second side and including a plurality of folds defining a plurality of flow channels, a first set of the plurality of flow channels having open first ends, a second set of the plurality of flow channels having open second ends; and
a second sheet of filter media extending across the first sheet of filter media, the second sheet of filter media comprising a plurality of embossments arranged in an interrupted straight line pattern, each of the plurality of embossments forming a raised surface configured to maintain a separation distance between the second sheet of filter media and an adjacent sheet of filter media, the plurality of embossments arranged at an angle Φ with respect to an X-Y axis that defines a plane of the second sheet of filter media, wherein the angle Φ is between 0 and 60 degrees relative to a lateral direction.
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