A photocatalytic structure that can uniformize ultraviolet lights is provided. The photocatalytic structure includes a housing, a groove formed at a top of the housing, multiple grille slices being engaged with two sides of an inner wall of the groove, multiple grille passages being formed between every two adjacent grille slices, metal meshes disposed on both top and bottom of the grille slices, and a UVC-LED light board disposed at a side of the grille slices. The photocatalytic structure stacks the grille slices to form the grille passages. The UVC-LED light board makes grille passages to reflect the ultraviolet light. More uniform lights are formed at both upper and lower sides of the grille passages. The UVC-LED light board close to the metal meshes ensures the uniform lights to be emitted onto a gap plane with a smaller refraction angle. Therefore, everywhere on the metal meshes are fully illuminated.

The present disclosure is related to an air sterilization-and-disinfection module that embodies two bactericidal factors. The module is directed to a field of sterilization for an air conditioning conduit. A corrugated board is disposed in the middle of the module. A plurality of wavy channels are formed in between multiple corrugated boards. Several metal meshes are disposed at top and bottom of the multiple corrugated boards. A sterilization component is disposed inside the wavy channels for sterilizing the air conditioning conduits. The two bactericidal factors are pure ultraviolet irradiation sterilization and photocatalyst sterilization. The sterilization component irradiates ultraviolet ray and the ultraviolet ray is spilled out from top and bottom of the wavy channels since the light is reflected by a reflective layer on the surfaces of wavy channels. The spilled ultraviolet ray stimulates the photocatalyst mesh on the metal meshes for achieving the two bactericidal factors.

A UVC-integrated LED structure adapted to air sterilization-and-disinfection grilles is provided. The UVC-integrated LED structure includes a housing, an opening disposed at top of the housing, multiple wavy grilles engaged with both sides of inner wall of the opening, placement grooves openly disposed at one side of the wavy grilles, and COB light boards disposed inside the placement grooves. The UVC-integrated LED structure installs the COB light boards at the placement grooves. The structure allows the COB light boards to be hidden on the surfaces of the wavy grilles for decreasing height of the COBs. Therefore, air resistance can be reduced when the ultraviolet ray irradiates on the passing air. The impact of dust being adhered to the COB light boards can be reduced. The air passing through the multiple wavy grilles can be sterilized and disinfected.

A UVC-integrated LED structure adapted to air sterilization-and-disinfection grilles is provided. The UVC-integrated LED structure includes a housing, an opening disposed at top of the housing, multiple wavy grilles engaged with both sides of inner wall of the opening, placement grooves openly disposed at one side of the wavy grilles, and COB light boards disposed inside the placement grooves. The UVC-integrated LED structure installs the COB light boards at the placement grooves. The structure allows the COB light boards to be hidden on the surfaces of the wavy grilles for decreasing height of the COBs. Therefore, air resistance can be reduced when the ultraviolet ray irradiates on the passing air. The impact of dust being adhered to the COB light boards can be reduced. The air passing through the multiple wavy grilles can be sterilized and disinfected.

A hazardous gas purification device with a built-in purification system is disclosed. The disclosed present invention is characterized in that it comprises a body case provided with an intake port for sucking hazardous gas on the upper side, provided with an exhaust port for discharging purified air to the outside on the lower side, and provided with an accommodating part provided between the intake port and the exhaust port on the inside; a pre-filter for filtering out large particles of dust and foreign substances contained in the hazardous gas introduced through the intake port; and a modular purification system, in a state of being installed in the accommodating part, for sterilizing viruses while filtering hazardous substances and fine particulate foreign substances contained in the hazardous gas introduced through the intake port, wherein the purification system consists of a three-dimensional filter for three-dimensionally filtering volatile organic compounds contained in the hazardous gas passed through the pre-filter from four directions; a pressure-feed fan, in a state of being disposed below the three-dimensional filter, for sucking hazardous gas through the intake port and forcibly discharging purified air through the exhaust port; a UV lamp disposed below the pressure-feed fan and for irradiating the pressure-feed fan and the hazardous gas with ultraviolet rays to sterilize harmful viruses; a HEPA filter disposed below the UV lamp and for filtering fine particles in the hazardous gas that is not filtered by the pre-filter; and a flat plate filter disposed below the HEPA filter and for filtering the remaining amount of volatile organic compounds that are not filtered by the three-dimensional filter.

A hazardous gas purification device with a built-in purification system is disclosed. The disclosed present invention is characterized in that it comprises a body case provided with an intake port for sucking hazardous gas on the upper side, provided with an exhaust port for discharging purified air to the outside on the lower side, and provided with an accommodating part provided between the intake port and the exhaust port on the inside; a pre-filter for filtering out large particles of dust and foreign substances contained in the hazardous gas introduced through the intake port; and a modular purification system, in a state of being installed in the accommodating part, for sterilizing viruses while filtering hazardous substances and fine particulate foreign substances contained in the hazardous gas introduced through the intake port, wherein the purification system consists of a three-dimensional filter for three-dimensionally filtering volatile organic compounds contained in the hazardous gas passed through the pre-filter from four directions; a pressure-feed fan, in a state of being disposed below the three-dimensional filter, for sucking hazardous gas through the intake port and forcibly discharging purified air through the exhaust port; a UV lamp disposed below the pressure-feed fan and for irradiating the pressure-feed fan and the hazardous gas with ultraviolet rays to sterilize harmful viruses; a HEPA filter disposed below the UV lamp and for filtering fine particles in the hazardous gas that is not filtered by the pre-filter; and a flat plate filter disposed below the HEPA filter and for filtering the remaining amount of volatile organic compounds that are not filtered by the three-dimensional filter.

An air conditioning system includes an air handler, an evaporator coil, a blower and a heater all within the air handler. The system further includes an air filter and a transition between the air handler and the air filter. The transition includes at least four panels that together define a perimeter and an interior of the transition. A first end of the transition is configured to be attached to the air handler. A second end of the transition is opposite the first end, and an air filter is disposed at the second end. At least one of the at least four panels includes an access door that opens to allow access into the interior of the transition. A method includes positioning the first end of the transition at a first end of the air handler, and positioning the air filter at the second end of the transition.

An air conditioning system includes an air handler, an evaporator coil, a blower and a heater all within the air handler. The system further includes an air filter and a transition between the air handler and the air filter. The transition includes at least four panels that together define a perimeter and an interior of the transition. A first end of the transition is configured to be attached to the air handler. A second end of the transition is opposite the first end, and an air filter is disposed at the second end. At least one of the at least four panels includes an access door that opens to allow access into the interior of the transition. A method includes positioning the first end of the transition at a first end of the air handler, and positioning the air filter at the second end of the transition.

Lighting device that provides, in addition to effective LED illumination, controlled UVC treatment of an airflow that provides sterilization of the air without endangering those using the illumination or damaging the environment being illuminated. Some embodiments include variable light and sterilization control, with variables being timing, intensity and light color, for example.

Lighting device that provides, in addition to effective LED illumination, controlled UVC treatment of an airflow that provides sterilization of the air without endangering those using the illumination or damaging the environment being illuminated. Some embodiments include variable light and sterilization control, with variables being timing, intensity and light color, for example.