Abstract: A combination closure-cup assembly including a rotatably removable cup for securing to a bottle. The bottle having an inner cavity, frusto-conical neck and spout including external threading, and an annual peripheral flange extending outwardly from the frusto-conical neck below the external threading. The cup has a first end having a circular flat bottom including a scalloped rim, a second end, and a frusto-conical neck portion connecting the first and second end. The cup includes an outer surface, an internal cavity having threading, an inwardly recessed straw aperture, and a leak proof seal. The outer surface has a plurality of axial ribs.

Abstract: An indoor air purification system and method of same includes a case which removably attaches to an exhaust of cleaning equipment. An air purification chamber housed within the case includes an intake and exhaust wall and side walls, including a first side wall having an outside and inside surface. The intake and exhaust walls of the chamber are covered by aluminum metal mesh filters with a titanium dioxide coating. An ultraviolet-A blacklight blue is mounted to the inside surface of the first side wall of the chamber and includes an elongated u-shaped lamp for activating the titanium dioxide coating. An ultraviolet-C germicidal light for ultraviolet germicidal irradiation is mounted above the ultraviolet-A blacklight blue within the chamber and includes an elongated u-shaped lamp. A solid state high frequency electronic ballast powers and activates the lamps and converts voltage.