A negative air discharge apparatus configured to be operably coupled to a negative air machine so as to facilitate the discharge of air from the negative air machine into the interior of a building. The negative air discharge apparatus includes a housing having a plurality of walls, a top and a bottom configured to form an interior volume. The housing has operably coupled thereto an air intake wherein the air intake is configured to be coupled to a negative air machine via a flexible air duct. The negative air discharge apparatus further includes an air discharge port proximate the bottom of the housing that is operable to discharge air from the negative air machine. The housing further includes a first access and a second access that are configured to provide entry into the interior volume of the housing and the plurality of air filters disposed therein.
