Abstract: In some embodiments, an air filter coupling device may include an elongated member, an elongated first cap, and an elongated second cap. The elongated member may include a substantially planar first side, a substantially planar second side positioned substantially opposite the first side, and a fourth side positioned substantially opposite the third side. In some embodiments, the elongated first cap may be coupled to the third side in a substantially orthogonal orientation relative to the elongated member. In some embodiments, the elongated second cap may be coupled to the fourth side in a substantially orthogonal orientation relative to the elongated member. A second distance between the first cap and the second cap adjacent each first end portion of the first and second caps inhibits removal of the first air filter. The air filter coupling device inhibits conveyance of materials between the first air filter and the second air filter.