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US 2026/0042041 A1Published application
Filter media including nonwoven fiber webs comprising nanofibers, and related methods
AssigneeHollingsworth & Vose Company
InventorsPraveen Kumar Yegya Raman, Keith Higginson
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Abstract
Filter media including nonwoven fiber webs comprising nanofibers, and related methods, are generally described.
Claims27
A filter media, comprising:
- a nonwoven fiber web comprising nanofibers;
- wherein the filter media has a gamma of greater than or equal to 20 and
- (a) an efficiency metric of greater than or equal to 0.04 and less than or equal to 4.5 and an air permeability (CFM) to mean flow pore size (micron) ratio of greater than or equal to 13;
- or
- (b) an efficiency metric of greater than 4.5 and less than or equal to 8 and an air permeability (CFM) to mean flow pore size (micron) ratio of greater than or equal to 18.
2 more elements
A filter media, comprising:
- a nonwoven fiber web comprising nanofibers;
- wherein the filter media has:
- (a) an efficiency metric of greater than or equal to 0.04 and less than or equal to 4.5 and an air permeability (CFM) to mean flow pore size (micron) ratio of greater than or equal to 13;
- or
- (b) an efficiency metric of greater than 4.5 and less than or equal to 8 and an air permeability (CFM) to mean flow pore size (micron) ratio of greater than or equal to 18.
2 more elements
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Dependencies are inferred from the claim text.