Abstract: There is disclosed an adjustable germicidal system to be attached to an air handling apparatus. In one embodiment, an adjustable germicidal system comprises a first socket assembly adjustably coupled to a second socket assembly. The first socket assembly and the second socket assembly may be spatially adjusted with respect to one another in at least one dimension. A germicidal lamp is coupled to each of the socket assemblies. The adjustability of the socket assemblies allows the lamps to be placed in a desired alignment relative to one another and relative to one or more walls of the air handling apparatus. A single power cord is coupled to one of the socket assemblies.

Abstract: There are described apparatus and methods wherein ultraviolet light kills and/or degrades and vaporizes microorganisms and organic material which naturally form over time on a surface to thereby clean the surface.

Abstract: A mechanical ventilation system, which obtains and maintains to below threshold reduced concentrations of volatile organic compounds and common organic odors in an air stream. The air stream has a concentration of volatile organic compounds of at least 100 parts per million and a temperature of between 30° and 70° F. The mechanical ventilation system comprises a duct, an air moving apparatus and a low-pressure germicidal lamp. The duct has a volume of at least five cubic feet for temporally containing and directing the air stream. The air moving apparatus moves the air stream through the duct at a speed of at least 100 cubic feet per minute. The low-pressure germicidal lamp is installed with respect to the duct such that the germicidal lamp, when energized, will irradiate the air stream passing through the duct.

Abstract: A mechanical ventilation system, which obtains and maintains to below threshold reduced concentrations of volatile organic compounds and common organic odors in an air stream. The air stream has a concentration of volatile organic compounds of at least 100 parts per million and a temperature of between 30° and 70° F. The mechanical ventilation system comprises a duct, an air moving apparatus and a low-pressure germicidal lamp. The duct has a volume of at least five cubic feet for temporally containing and directing the air stream. The air moving apparatus moves the air stream through the duct at a speed of at least 100 cubic feet per minute. The low-pressure germicidal lamp is installed with respect to the duct such that the germicidal lamp, when energized, will irradiate the air stream passing through the duct.

Abstract: There are described apparatus and methods wherein ultraviolet light kills and/or degrades and vaporizes microorganisms and organic material which naturally form over time on a heat exchanger. As this matter is eliminated, the pressure drop is decreased (i.e., airflow is increased) and the heat exchange efficiency (capacity) is increased. Less energy per Btu removed is used by the cooling system, and less energy is used by the HVAC system to move air.

Abstract: A method and apparatus are disclosed for gas phase sorption in which a sorption device having an inlet is provided in combination with a source of UV light. The UV light is directed at the inlet of the sorption device for the purpose of destroying organic gas phase compounds and the removal of residue, and OH radicals are formed by the UV light proximate the inlet of the sorption device to destroy organic gas phase compounds disposed on and proximate the inlet of the sorption device. The sorption device is reactivated in situ, the single pass efficiency of the sorption device is enhanced, and the mechanical useable service life of the sorption device is enhanced.

Abstract: A germicidal lamp for harsh environments is disclosed. The germicidal lamp is suited for outdoor installation on an HVAC system or related components. The germicidal lamp is made from materials resistant to splashing water, etc., and includes plural seals to protect the interior of the fixture and prevent leakage or contamination into or out of the HVAC system.

Abstract: There are described apparatus and methods wherein ultraviolet light kills and/or degrades and vaporizes microorganisms and organic material which naturally form over time on a heat exchanger. As this matter is eliminated, the pressure drop is decreased (i.e., airflow is increased) and the heat exchange efficiency (capacity) is increased. Less energy per Btu removed is used by the cooling system, and less energy is used by the HVAC system to move air.

Abstract: There are described apparatus and methods wherein ultraviolet light kills and/or degrades and vaporizes microorganisms and organic material which naturally form over time on a heat exchanger. As this matter is eliminated, the pressure drop is decreased (i.e., airflow is increased) and the heat exchange efficiency (capacity) is increased. Less energy per Btu removed is used by the cooling system, and less energy is used by the HVAC system to move air.

Abstract: There are described apparatus and methods wherein ultraviolet light kills and/or degrades and vaporizes microorganisms and organic material which naturally form over time on a heat exchanger. As this matter is eliminated, the pressure drop is decreased (i.e., airflow is increased) and the heat exchange efficiency (capacity) is increased. Less energy per Btu removed is used by the cooling system, and less energy is used by the HVAC system to move air.

Abstract: A germicidal lamp is disclosed. The lamp's tube has a single stem and may be installed in the lamp's fixture without touching the tube's envelope. The fixture includes a mounting mechanism and a damping mechanism which ease installation and render the tube less susceptible to adverse forces.

Abstract: A method and apparatus wherein a germicidal lamp's tube is positioned in a particular manner relative to the HVAC system such that the system coil and drain pan components are subjected to UVC radiation and an increased flux density of photons emitted therefrom, and the photons are continuously reflected and directed within and through the coil until absorbed. In this manner the flux density of the photons is increased, as well as the dosage of the photons actually applied to a surface or airborne microorganism, minimizing the occurrence of HVAC-sourced bioaerosols and effectively and efficiently killing the mold and bacteria that grow on the coil and in the drain pan of a HVAC system without producing a secondary contaminant.

Abstract: A germicidal lamp for harsh environments is disclosed. The germicidal lamp is suited for outdoor installation on an HVAC system or related components. The germicidal lamp is made from materials resistant to splashing water, etc., and includes plural seals to protect the interior of the fixture and prevent leakage or contamination into or out of the HVAC system.