Collection unit for an air filtration system, air filtration system and method of producing a collection element

A collection unit, an air filtration system, and a method of producing a collection element for a collection unit is herein proposed for adsorbing hazardous or undesired gases as well as collecting airborne particles. The novel collection unit for an air filtration system includes a plurality of collection elements that are configured to provide surfaces to attract airborne particles by electric charge, wherein said surfaces of said collection elements are treated with a chemisorption compound. In the novel method, a collection element is provided and a gas flow is provided over the collection element surface. A chemisorption compound, such as one based contained in a liquid solution, is aerosolised to form an aerosol and, subsequently, the aerosol formed in the gas flow is deposited on the surfaces of said collection element.

Patent family as of 22.12.2025
FI131672B1
US2025222467A1
WO2023180627A1