The present invention provides a gas filter comprising an active element and a housing structure for said active element, said housing structure comprising a gas inlet and a gas outlet, said active element comprising or consisting of: a matrix material; a CO2 sorbent; and water, wherein at least some of the CO2 sorbent is embedded within the matrix material.

Original languageEnglish
Patent numberWO2022123230
Priority date8/12/20
Publication statusPublished - 16 Jun 2022


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