A heat exchange ventilator includes a window frame, a lighting section inside the window frame; and a heat exchange element superimposed on the lighting section. The window frame includes an exhaust flow inlet, an exhaust flow outlet, an air supply flow inlet, an air supply flow outlet, an exhaust blower, and an air supply blower. The heat exchange element includes multiple heat transfer plates defining multiple air passages. Each heat transfer plate separates two air passages among the multiple air passages. Heat exchange plates are optically transparent and exchange sensible heat or total heat. The air passages include air supply passages and exhaust passages. Each air supply passage is between the air supply flow inlet and the air supply flow outlet. Each exhaust passage is between the exhaust flow inlet and the exhaust flow outlet. The air supply passages and the exhaust passages are alternatively arranged one by one.

An air purifier system characterized by a housing, a fan, and a motor, as well as a docking ring located at the outer edge of the inlet side of the air purifier system, a seat below the housing, a prefilter or barrier upstream of the fan, and a filter downstream of the fan. An air purifier system characterized by an upstream-to-downstream airflow path that includes an axial fan, a diffuser, and a filter, in that relative order, with an electric motor held along the centerline of the housing by one or more supports and/or guide vanes. A docking ring that facilitates attachment of a screen-like, mesh-like, cloth-like, or paper-like filter to a machine capable of air purification, characterized by having a large hole through which air passes and by attachment to the machine utilizing any tongue and groove system, for which installation and removal of the docking ring is achieved, in whole or in part, by rotation of said docking ring relative to the machine.

An improved double skin facade system for buildings is disclosed. In one embodiment, the double skin facade system is a multi-functional device that can be used in a variety of ways to provide heat, produce and store solar and wind electricity, take advantage of natural and biological properties of plants, and provide cooling and natural ventilation. In one embodiment, the device is comprised of a mounting structure, and multiple columns of interconnected modules. Through the interconnected movable modules, the double skin facade system can easily switch functionalities between a heater, ventilator and cooling system. The device is easy and inexpensive to operate and its functionalities can be changed with simple touches of buttons.

The invention relates to an air intelligent circulation filter window for confined space which includes a window, an air blowing device and a circulation filtration device. The window includes an upper window frame, a lower window frame and support plates. The air blowing device includes an exhaust humidifying mechanism and a first sensor group. The exhaust humidifying mechanism includes a humidifying water tank, a first air pump, a mixer and a first air filter. The circulation filtration device includes a first filter pump, a plurality of heat exchange cavities, a second filter pump and a second sensor group. The first filter pump and the second filter pump respectively include a second air pump, a second air filter, and an air outlet. The heat exchange cavities are provided with heat exchange tubes. The an air intelligent circulation filter window for confined space of the present invention has the advantages of simple structure, convenient to use, energy saving and environmental protection, small occupied area and high intelligence degree which effectively solves the problem that the existing confined space window without ventilation does not have temperature control function.

The present invention discloses a ventilator with dual flow passages. There is a mode switcher on the partition board. The ventilator has a variety of operating modes, such as, the natural or mechanical driving mode according to outdoor wind speed, and single-effect or multi-effect filtration according to the outdoor air pollution conditions. The single-effect filtration uses only the primary-efficiency filter, while the three-effect filtration uses the primary-, medium-, and high-efficiency filters. The mode switcher on the partition board can open or close the by-pass baffle to bypass or go through the medium- and high-efficiency filters for switching between the single-effect and multi-effect filtration. In case some indoor pollution sources need to be removed quickly, the recirculated indoor air filtration can be run. In such situation, the primary-efficiency filter in the mechanically-driven flow passage is bypassed, while the fan drives indoor air passing the medium- and high-efficiency filters.

A ventilation element attachable to a lower portion of a sectional garage door for enabling a ventilation condition of the garage door in a partially open position. The ventilation element provides a peripheral frame dimensioned and shaped to mimic a lower section of the sectional garage door. The peripheral frame enables a plurality of filters to be removably nested therein. The peripheral frame is movably attached to the interior surface of the garage door by a plurality of travel bars fixed thereto; a complementary number of grip brackets are attached to the peripheral frame so that the peripheral frame is moveable between a retracted position and an extended position disposing the peripheral frame below a bottom elevation of the garage door so that when the garage door is in the partially open position, the peripheral frame and nested filters established a ventilation barrier between the garage door and the driveway.

An environmental window apparatus includes at least two dry open window (DOW) assemblies stacked on top of each other. Each DOW assembly includes a dry open window (DOW) structure having a plurality of louvers which, when viewed in cross section, have V or W shapes that enable air to pass through a window opening while limiting passage of precipitation, the precipitation being captured by the louvers for collection or drainage and a plurality of vertical members supporting the louvers in a spaced apart arrangement. A plurality of vertical rods are fixed to the vertical members of each DOW assembly by fasteners in a spaced apart arrangement to hold the DOW assemblies in place.

A supply air apparatus for producing outdoor air into an indoor space assisted by an auxiliary powered blower by simultaneously mixing the outdoor air with air from the indoor space. In connection with an outdoor air flow way in a structure in a building between the indoor space and outside air, a flow space and flow connections for outdoor and indoor air for mixing with each other, the blower and a blow flow arrangement for leading a mixed flow of air into the indoor space in the building. In connection with a supply air device in an outer wall of the building, an air distribution device including: a frame; a flow space in the frame; an inflow outdoor and indoor air that joins with the flow space and opens into an internal space in the building; the blower; and a blow flow leading the mixed air into the indoor space.

A smart ventilation system which performs the ventilation of indoors, increases the air quality in closed spaces and maintains air quality, which is positioned over a window and includes: a ventilation module on a main body, which is attached to the window so as to control the air passage between indoors and outdoors; indoor and outdoor sensor groups which measure the air values indoors and outdoors, respectively; and an electronic card which analyzes the sensor values and engages one or more of an air intake fan group, an air outlet fan group, a dehumidifier, and a humidifier as a result of the analysis. A device provides the necessary energy from the adaptor and water reservoir.

A daylighting device of the present invention includes: a daylighting member including: a first light-transmitting base member; and a plurality of protruding, light-transmitting daylighting sections provided on a first face or a second face of the first light-transmitting base member; and a ventilation hole configured to enable a space on the first face to communicate with a space on the second face opposite from the first face.