Air filtration apparatus for removing virus particles

An air filtration system installable to an occupiable space, the air filtration system comprising:

• an air delivery pipe configured to be installed above, and in fluid communication with, an occupiable space having a first end and a second end, the air delivery pipe having an open end extendable to the first end of the occupiable space, and a closed end extendable to the second end of the occupiable space;
• a plurality of air apertures disposed along a length of the air delivery pipe are configured to provide a flow of air out of the air delivery pipe that is constant along the length of the air delivery pipe;
• an air exhaust pipe configured to be installed below, and in fluid communication with, the occupiable space, the air exhaust pipe having an open end extendable to the first end of the occupiable space, and a closed end extendable to the second end of the occupiable space;
• a plurality of air apertures disposed along a length of the air exhaust pipe are configured to provide a flow of air into the air exhaust pipe that is constant along the length of the air exhaust pipe;
• an air driving element configured to be installed in fluid communication with the open end of the air exhaust pipe and the open end of the air delivery pipe, the air driving element being configured to provide a net flow of air from the air delivery pipe, across the occupiable space, and to the air exhaust pipe;
• and
• an air cleaning element configured to be installed in fluid communication with the open end of the air exhaust pipe and the open end of the air delivery pipe.