Field-assembled air conveyance apparatus, systems and methods

A method comprising:

• assembling a pair of first quadrilateral panels to a pair of second quadrilateral panels to form a heating, ventilation and air conditioning air conveyance apparatus, comprising:
• inserting a right-angle flange extending from each of a pair of opposite edges of each of the first quadrilateral panels into a hemmed cleat defined along each of a pair of opposite edges of each of a respective one of the second quadrilateral panels;
• and
• securing each of the first quadrilateral panels to the respective one of the second quadrilateral panels with a fastener received through a pilot hole defined through a projecting lip of the hemmed cleat of each of the second quadrilateral panels into the right-angle flange extending from the respective one of the first quadrilateral panels.

A heating, ventilation and air conditioning system comprising:

• a first heating, ventilation and air conditioning unit;
• a second heating, ventilation and air conditioning unit;
• and
• a heating, ventilation and air conditioning air conveyance apparatus disposed between, and secured to, the first heating, ventilation and air conditioning unit and the second heating, ventilation and air conditioning unit, the air conveyance apparatus comprising:
• a plurality of panels adapted to be field-assembled to form the heating, ventilation and air conditioning air conveyance apparatus, each panel comprising an air purification coating disposed on an inner surface, and the plurality of panels comprising:
• a pair of first quadrilateral panels, each first quadrilateral panel defining a right-angle flange extending from each of a pair of opposite edges;
• a pair of second quadrilateral panels, each second quadrilateral panel defining a hemmed cleat along each of a pair of opposite edges, each hemmed cleat shaped and dimensioned to receive one of the first quadrilateral panel right-angle flanges to form the heating, ventilation and air conditioning air conveyance apparatus;
• and
• heating, ventilation and air conditioning unit mating flanges extending from each other edge of each of the first quadrilateral panels and/or from each other edge of each of the second quadrilateral panels, such that at least a pair of opposed peripheral heating, ventilation and air conditioning unit mating flanges extend from each end of the heating, ventilation and air conditioning air conveyance apparatus and is received securably by an open end of each of the first and second heating, ventilation and air conditioning units.