Patent ID: 11969679
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 11:
12. A method for purifying air comprising the steps of:
providing an air filter assembly configured for installation in an air ventilation system, said air filter assembly having a filter housing surrounding a surface-enhanced copper filter configured with a plurality of pleated woven filter materials and at least one of the pleated woven filter materials is a substantially pure solid elemental copper material located in at least a portion of an open air ventilation area, wherein said woven copper filter material has alternating interlaced and overlapping substantially pure copper fiber filaments forming a weave of substantially pure copper filter, said weave of alternating interlaced and overlapping substantially pure copper fiber filaments create pore spaces between the substantially pure copper fiber filaments so that air may be directed through the pore spaces thereby coming into contact with the copper on the surface of the substantially pure copper fiber filaments;
said surface-enhanced weave of substantially pure copper filaments configured in a pleated manner to contact biological contaminants and other pollutants in an airflow of the open air ventilation area to come in contact with said biological contaminants;
said filter housing having a frame with top, bottom, left side and right side u-shaped members surrounding the surface-enhanced copper filter;
placing said filter housing in the filter assembly; said air ventilation system having a perforation to accommodate the exterior housing;
activating the ventilation system to create an air flow through the filter assembly, wherein the surface-enhanced copper filter removes biological contaminants and other pollutants from the air, inactivating said biological contaminants; and,
returning air to the environment after removal of biological contaminants and other pollutants from the air, and inactivating said biological contaminants.