Patent ID: 8277735
Filing Date: 2012-10-02
Classification: A61L

Abstract:
1. An air purifier apparatus comprising: an air inlet for receiving unclean air; an air outlet for providing purified air a pre-filter coupled to the air inlet; an axial fan for receiving and forwarding air from the air inlet in a spiral flow; a first radial louver for further promoting the spiral flow of the air and providing the spiral flow of the air around a UV light in a UV reaction chamber, the UV-light source providing UV light to the spiral flow of the air from the first radial louver, the UV reaction chamber having a reflective lining to reflect the UV light, the UV reaction chamber to provide UV purified air from the UV reaction chamber; a chemical catalyst cartridge for receiving the UV purified air from the UV reaction chamber, for further purifying the UV purified air with a chemical catalyst; a post filter coupled to the air outlet to output purified, filtered air; and a controller circuit including a lamp ballast for controlling the UV-light source, the controller circuit including an astable multi-vibrator circuit of one or more diodes for rapidly driving the gates of respective one or metal oxide semiconductor field-effect transistors (MOSFETS) to operate the lamp ballast.