1204 results about "Air decontamination" patented technology

A wall- or surface-mounted light fixture with a housing containing one or more external visible light sources to illuminate the space where the light fixture is mounted, one or more UV emitters inside the housing to destroy bacteria and pathogens, and one or more fans inside the housing that recirculate the air in a space and subject the air to the UV radiation inside the housing, destroying bacteria and pathogens in the air passing though the housing.

Process of reducing water, CO2 and N2O in feed air, which: a first adsorbent such as alumina (25-40% volume) and a second adsorbent such as X zeolite (60-75% volume) are used; the online time of the adsorbent is determined by determining the concentration measured by an analyzer for CO2 concentration at a position within the length of the second adsorbent when a maximum level of N2O is simultaneously obtained at the downstream end of the second adsorbent in the feed direction, wherein the online time is the time taken from commencing passing the feed air to the first and second adsorbents to the measurement by the analyzer of the determined concentration of CO2; at least the second adsorbent is regenerated by heated regeneration gas at a temperature of 140° C.-220° C.; and the molar ratio of the regenerating gas to feed air supplied during one iteration of the cycle is 0.08-0.5.

The invention discloses a control method based on an air conditioner, the air conditioner, a home system and a storage medium. The control method can be applied to the intelligent home system composedof the air conditioner and other home appliances. By monitoring the carbon dioxide concentration changes of all areas in a room, when the carbon dioxide concentration of any area in the room is larger than a preset threshold value corresponding to the current point-in-time, the outdoor air quality is detected, a fresh air ventilation command or an air purification command is output according to the detected outdoor air quality, the corresponding fresh air ventilation operation or air purification operation is carried out so that the indoor air quality can be improved, and thus the situation that the carbon dioxide concentration is too high and consequently the health of human beings is threatened is avoided.

A variety of transportable air treatment system improvements are described. In one aspect of the invention, the system is designed to significantly reduce the noise generated during operation. In another aspect, an easily removable cooling unit is provided. In still another aspect, an air treatment unit (as for example a plasma reactor) is provided that is arranged to filter the air stream, inactivate biological organisms and / or reduce or eliminate volatile organic compounds (VOCs) that are carried in the air stream. The air treatment unit may take the form of a plurality of stacked trays. In yet another aspect of the invention, the air treatment system further includes a duct unit that directs air from the air treatment unit to the treated air outlet. The duct unit is operable to clamp the stacked trays to help seal the stacked trays.

The invention discloses an air filtering medium material comprising bird nest type nano fiber materials. The bird nest type nano fiber materials are bird nest type particles which are formed by interweaving nano fibers with multiporous structures and nano particles; the nano particles consist of the same type or different types of substances which form the bird nest type nano fiber materials; furthermore, the bird nest type nano fiber materials can be combined with other active particles to form the multifunctional composite air filtering medium material. Moreover, the invention also discloses an air filtering medium and an air filter which comprise the air filtering medium material as well as an air filtering method adopting the air filter. The air filtering medium material disclosed by the invention can effectively filter toxic gases, including more than 50 types of organic volatile matters, in air; meanwhile, the air filtering medium material can adsorb particle pollutants in air and remove peculiar smell, so that a satisfactory air purification effect can be achieved by one material.

A variety of transportable air treatment system improvements are described. In one aspect of the invention, the system is designed to significantly reduce the noise generated during operation. In another aspect, an easily removable cooling unit is provided. In still another aspect, an air treatment unit (as for example a plasma reactor) is provided that is arranged to filter the air stream, inactivate biological organisms and / or reduce or eliminate volatile organic compounds (VOCs) that are carried in the air stream. The air treatment unit may take the form of a plurality of stacked trays. In yet another aspect of the invention, the air treatment system further includes a duct unit that directs air from the air treatment unit to the treated air outlet. The duct unit is operable to clamp the stacked trays to help seal the stacked trays.

The invention relates to an air purifying method and an air purifying filter element. The air purifying filter element manufactured by the air purifying method comprises a primary particle filtering layer, a catalytic oxidizing and sterilizing layer, an organic gas adsorbing layer, a high-efficiency filtering layer and an ozone degrading catalyzing layer, wherein the pore diameter of the primary particle filtering layer is greater than or equal to 2.5 micrometers; the catalytic oxidizing and sterilizing layer is loaded with a formaldehyde oxidizing catalyst and a T-shaped tube, a chloride dioxide slow-release tablet is arranged in the T-shaped tube, and the organic gas adsorbing layer comprises adsorbent particles for adsorbing organic gas; the filtering pore diameter of the high-efficiency filtering layer is smaller than 2.5 micrometers; the ozone degrading catalyzing layer comprises a nanometer oxide catalyst for decomposing the ozone into oxygen at normal temperature. The air purifying filter element has the advantages that the breeding of pathogenic bacteria in the air purifying device can be inhibited by the chloride dioxide, and the indoor air quality is further improved; after the chloride dioxide is combined with the formaldehyde oxidizing catalyst, the double functions of reducing the content of formaldehyde and sterilizing bacteria are realized, and the indoor ozone pollution is eliminated.

The invention relates to a high-efficiency air purifying agent for removing formaldehyde and odor and a preparation method of the high-efficiency air purifying agent. The high-efficiency air purifying agent is prepared from the following raw materials in percentage by weight: 20 to 40 percent of amino acid, 2 to 5 percent of activator, 2 to 5 percent of dispersant, 1 to 5 percent of permeating agent and the balance of purified water. The high-efficiency air purifying agent disclosed by the invention has the advantages that hazardous substances such as free formaldehyde, benzene, toluene and TVOC (Total Volatile Organic Compound) in air are efficiently removed and decomposed, thereby solving air pollution in a room and a vehicle and achieving the aim of purifying air and removing the odor in air.

The invention discloses an internal and external air purifier with an automatic filter core replacement prompting function. Outdoor air is connected with an outdoor air inlet cavity through a first fan, the outdoor air inlet cavity and an indoor air inlet cavity are connected through a first electromagnetic valve, indoor air is connected with the indoor air inlet cavity through a second fan, the outdoor air inlet cavity is connected with the filter core through a second electromagnetic valve, the indoor air inlet cavity is directly connected with the filter core, an outlet of the filter core is connected with an air outlet cavity through a heating device, an air pressure sensor is arranged on the inner wall of a case, a dust sensor is arranged in the indoor air inlet cavity, a photoelectric sensor is arranged on the filter core, and a control circuit is connected with the photoelectric sensor, the dust sensor and the air pressure sensor, the two fans, the two electromagnetic valves and the heating device. The internal and external air purifier has the advantages that two modes including an internal circulation mode and an external circulation mode and the function of automatically prompting the filter core replacement are realized, the functions of the air purifier are improved, the purification effect is improved in the method aspect, the problems of vitiated air exhaust incapability during window closing, air purification effect reduction during window opening and the like are solved, and convenience is brought for users.

In accordance with an embodiment of the invention, an integrated air processing device includes a housing defining an air inlet, an air outlet, and a pathway from the inlet to the outlet. An air decontamination section, an air conditioning section, and a heating section are provided along the pathway. A blower is also provided along the pathway, to drive air from the inlet to the outlet, along the pathway. In another example, an integrated air processing device includes a housing as above, and an air conditioning section and a heating section along the pathway. An air decontamination section and / or a blower may also be provided along the pathway. In accordance with another embodiment, a portable isolation containment system includes one or more portable containment enclosures coupled to the integrated air processing devices described above. Methods are disclosed, as well.

The invention provides an experiment cabin system capable of adjusting atmospheric environmental pressure. The system is characterized by comprising an experiment cabin arranged in a constant-temperature constant-humidity environmental chamber and a positive and negative pressure generation unit, a ventilation adjusting unit, an air purification unit, a meteorological sensor and a system control unit controllable both in and out of the cabin, which are arranged to be communicated with the cabin. Compared to the prior art, the invention has the following advantages: 1, the system can realize control of the environment condition of atmospheric pressure in research and experiments on tobacco and is applicable to control of atmospheric pressure in most regions where people live; 2, the inner space of the system is great, which enables a plurality of staff to simultaneously carry out experiments; 3, the comprehensive air purification unit is provided in the cabin, which enables collection and purification of harmful gas generated after combustion of tobacco to be realized; 4, the system is simple to operate and enables single-key operation and comprehensive information prompting to be realized in normal usage; and 5, security design and humanized design of the system are considerate, an automatic safety device is arranged in the cabin, and hand-operated safety devices are arranged in and out of the cabin.