261results about How to "Improve indoor air quality" patented technology

An air purification system utilizing an ultraviolet germicidal lamp is disclosed. The air purification system is in fluid communication with a ventilation duct. The air purification system may also be in fluid communication with the ambient air. The air purification system may incorporate an actuator for the selection of the ambient air, the ventilation duct, or both as an air source for treatment. The air purification system may also be used to obtain a positive pressure within an enclosed space.

Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room.

A building's Heating Ventilating and Air Conditioning (HVAC) system is made more energy efficient and the indoor air quality (IAQ) of the building's circulating air is improved by incorporating a greenhouse as an integral part of the HVAC system and by utilizing a novel feed forward control strategy that maintains the proper levels of temperature, humidity and CO2 concentration in the building under varying conditions of day, time, use and occupancy.A portion or all of the exhaust air from the building is discharged into a greenhouse where the heat and humidity are recovered in the winter by heating the greenhouse and the air conditioning is recovered in the summer by cooling the greenhouse. Selected plants are used in the greenhouse to remove CO2 and pollutants from the building's exhaust air while enriching the air with oxygen and beneficial negatively charged ions. The oxygenated, improved quality air from the greenhouse is then used to supply all or a portion of the intake air to the building's HVAC system.

A method, as well as a controller, for controlling room temperature within a variable air volume system having a plurality of zones wherein the thermal transfer rate with respect to each of such zones is maintained at a substantially constant value notwithstanding changes in the temperature of the supply air thereby providing improved efficiency and environmental comfort.

This invention provides a healthcare cum optimal illumination device. The inventive device includes at least one frame, at least one light source, and at least one layer of treated filter cover. The light source is disposed in the frame. The light source emits infrared radiation, visible light radiation, and ultraviolet radiation. The visible radiation is used for illumination, and the invisible infrared and ultraviolet radiation is harnessed to improve indoor air quality. The layer of the filter cover is treated with substances of air cleaning properties and encloses the frame. The treated filter cover has at least one opening where air in the frame heated by the infrared radiation flows out from the device and cooler ambient air surrounding the device is drawn through the filter cover into the frame replacing the heated air that has flown out of the device to form air circulation and to perform air purification.

The disclosed technology enables manufacturers to efficiently design and manufacture structural wall panels, floor panels and roof panels from cold-formed steel for use in residential and commercial construction. The panels are individual components that can be installed at a building site to form a structure that includes walls, floor and a roof. Structures may be manufactured in a manufacturing facility and delivered to a construction site for installation.

This invention relates to a kind of individual air-supplying adjustment method, which belongs to air conditioning field. When user is not satisfy with the comfortableness of the environment surrounding air conditioner, he / she can adjust or turn the mechanism on air-supplying device of air conditioner to reduce the air-quantity supplying to himself / herself. He / she can meet the comfortable need through changing microenvironment parameters. The total air-quantity supplied from the end device keeps constant or decreases in order to ensure the freshness of indoor air. The air-quantity operation does not consume electric energy. It does not generate noises too. This invention is fit for the air conditioner situations of close range air supplying, high comfortableness need and different comfortableness needs.

A humidity controllable air cleaner for ordinary room or sickroom in air-conditioning room or hospital is composed of showering system, demoistening system, disinfecting system and auxiliary control system. Its advantage is high effect to clean air and kill bacteria and viruses.

The disclosed technology enables manufacturers to efficiently design and manufacture structural wall panels, floor panels and roof panels from cold-formed steel for use in residential and commercial construction. The panels are individual components that can be installed at a building site to form a structure that includes walls, floor and a roof. Structures may be manufactured in a manufacturing facility and delivered to a construction site for installation.

Methods and apparatus for determining indoor air contaminant levels independent of outdoor contaminant levels. In one embodiment, an infinite geometric series is used to compute a true indoor air contaminant level in a room.

The invention discloses a hot pressing injection mold for integral hot pressing injection molding of a fibrilia plate and a surface layer thereon. The mold comprises a lower mold, an upper mold and a vacuum pump, wherein the upper mold is movably arranged on the lower mold; a cavity is formed in the upper mold; a core fitting the cavity is arranged on the lower mold; a sealing ring is arranged between the upper mold and the lower mold; multiple through holes are formed in the upper mold, and are respectively communicated with the vacuum pump; and a gate for pouring a material into the core is arranged on the lower mold. The invention further discloses a processing technology. In the hot pressing injection mold and the processing technology provided by the invention, glue is not needed in the processing process, so that the processing technology is simplified; and an injection molding part and a reinforcing rib are integrally formed on the back surface of the fibrilia plate, so that the structural strength is improved.

The invention discloses an air processing device control system based on a cloud platform and a control method of the air processing device control system. The control system comprises air monitoringdevices and air processing devices, wherein the air monitoring devices and the air processing devices are associated with the cloud platform through a network system; and the cloud platform is associated with terminal devices used for controlling the air processing devices to work through the network system. The control method is that the cloud platform controls the air processing devices according to interaction results of the cloud platform and the terminal devices. According to the air processing device control system based on the cloud platform and the control method, great convenience isbrought to a user, namely, the user can control the different air processing devices to work cooperatively at one place; the advantages of the cloud platform are fully utilized, the total production cost of the air processing device control system is greatly reduced, the cost performance of the air processing device control system is greatly improved, and the application and popularization of theair processing device control system are facilitated; the multi-user air processing device control system based on the cloud platform can be realized; and use safety of the system is greatly improved.