Abstract: A range hood is disclosed and includes a main body, an air guiding fan, a filtering component, and a controller. The main body is configured to form an airflow path. The air guiding fan is disposed in the airflow path and is operated to guide an air convection with an extraction rate over 22 m3/min. The filtering component is disposed in the airflow path and filters an air pollution in the air convection guided by the air guiding fan. The networking controller receives a control command through wireless communication to perform an activation operation of the air guiding fan.

Abstract: A method for separating gaseous carbon dioxide from a gas mixture by cyclic adsorption/desorption using a sorbent material adsorbing said gaseous carbon dioxide, wherein the method comprises the following sequential and in this sequence repeating steps: (a) an adsorption step; (b) and isolating step; (c) injecting a stream of saturated or superheated steam and thereby inducing an increase in internal pressure of the reactor unit and an increase of the temperature of the sorbent from ambient atmospheric temperature to a temperature between 60 and 110 °C, starting the desorption of CO2; (d) extracting at least the desorbed gaseous carbon dioxide from the unit and separating gaseous carbon dioxide from water by condensation in or downstream of the unit, while preferably still injecting; (e) bringing the sorbent material to ambient atmospheric pressure conditions and ambient atmospheric temperature conditions.

Abstract: Processes for increasing an affinity of a filter media to airborne viral particles. A fiber substrate comprising borosilicate is provided. The fiber substrate may comprise acidic functional groups. A metal salt solution is introduced to the fiber substrate to form a treated substrate. The metal salt solution includes divalent and/or trivalent metal cations. The pH of the metal salt solution is adjusted, and a divalent and/or trivalent metal cation is exchanged with a proton from the acidic functional groups. The metal may be present in an amount ranging from about 0.001 to about 3.0 wt. % of the treated fiber substrate. The treated fiber substrate is incorporated into a filter media before or after the deposition of the metal onto the fiber substrate.

Abstract: An air cleaning system can rapidly senses occurrence of local pollution, caused by fine dust, through a remote sensor hub and supplies purified air to a polluted area in a concentrated manner, thereby quickly purifying indoor air.

Abstract: A condensation dedust-demister device, comprises at least one of the followings: a condensator, a refluent demister, a large curve demister, a mixed curve demister and a super-sine demister etc.. Said condensator designed as the first class as tube demister with shell/cavity style pipeline refrigerating system or cooling system can condense dust into mist/haze, consequently by centrifugal effect said refluent demister and so on can collect and dedust-demist what condensator condensed, with the assisting of collecting liquid wall, drain as well as multiple classes composition of various demister, the condensation dedust-demister set can dedust flue gas to 0 mg/Nm3 and demist to 10 mg/Nm3 when raw gas containing dust less than 20 mg/Nm3, at the same time, this set can remove grains of aerosol of SO3 and Hg0 etc. due to be condensed to haze by said condensator.

Abstract: Provided is a filter unit, including a frame fixed along a perimeter of an opening in a wall, a housing connected to the frame to form an inner space, a cover plate installed on the frame to cover the inner space, and a filter box provided with a filter and installed in the inner space.

Abstract: An exhaust system including a process chamber in which a semiconductor processing is performed, a buffer connected to the process chamber, the buffer configured to receive waste gas generated during the semiconductor processing and dualize and disperse powder generated from the waste gas may be provided, a reactor configured to burn the waste gas, a wet tank connected to the reactor, arranged below the reactor, and configured to store cleaning water, and a wet tower configured to decompose the powder in the waste gas by using the cleaning water may be provided.

Abstract: A gas separation system for producing a CH4-enriched gas from a feedstock gas containing CO2 and CH4, including a first gas separation membrane unit and a second gas separation membrane unit, in which the gas separation system includes a feedstock gas supply line connected to a gas inlet of the first gas separation membrane unit; a compression part disposed in the feedstock gas supply line; a first line connecting the retentate gas outlet of the first gas separation membrane unit and the gas inlet of the second gas separation membrane unit; a second line connecting the permeate gas outlet of the second gas separation membrane unit and the feedstock gas supply line; and a cooling part for lowering the operating temperature of the second gas separation membrane unit below the operating temperature of the first gas separation membrane unit.

Abstract: A method of treating environmental air by a supply vehicle configured to communicate with external interfaces via a first communication channel and a second communication channel, the method including: —receiving, on a supply vehicle and via the second communication channel, a request for treatment; —determining, by a control circuit of the supply vehicle, that an air treatment system has an additional treatment capacity available; —sending, from the supply vehicle and via the second communication channel, an acknowledgement, wherein the first communication channel has a lower latency than the second communication channel; and by the control circuit of the supply vehicle, controlling the air treatment system of the supply vehicle to increase treatment capacity. Air treatment system and vehicle configured to carry out the method.

Abstract: An air purifier, including: a first body including a first housing; and a second body detachably connected to the first body and including a second housing, where buckles are arranged on the first housing, and snap-fit members are arranged on the second housing; the number of the buckles is greater than the number of the snap-fit members; and the first body in butt joint is enabled to rotate relative to the second body, so that the buckles can be hooked with the snap-fit members or separated from the snap-fit members. In the air purifier, a larger number of buckles are hooked with a smaller number of snap-fit members, so that disassembly and assembly operations can be simplified. Because the first body and the second body are detachable, the second body can be operated independently when the filter screen is detached.

Abstract: A vehicle air conditioning system includes: a dehumidifying device; a power source; an inflow pipe for allowing air from a vehicle interior or a vehicle exterior to flow into the dehumidifying device; a first outflow pipe for returning the air that has been dehumidified by the dehumidifying device to the vehicle interior; a second outflow pipe through which the air containing moisture released by a regeneration process of the dehumidifying device is circulated; and a switching valve provided at a branch portion between the first outflow pipe and the second outflow pipe, the switching valve being capable of switching the flow of the air to the first outflow pipe or the second outflow pipe. A mist separator including a filter for removing the moisture is provided in the second outflow pipe. The second outflow pipe merges with the first outflow pipe on a downstream side of the mist separator.

Abstract: Disclosed are a pollutant capturer and mobilizer and method of mobilizing a polluted gaseous substance from one location towards another location and capturing one or multiple types of polluting substances, such as CO2, from an atmospheric body of polluted gaseous substance or from exhaust of vehicles, chimneys, or stacks and thereby combat the negative health, environmental, and economic impacts of the of the polluting substances on communities. Wet or dry embodiments of the pollutant capturer and mobilizer utilize wet or dry pollutant capturing components, respectively, to capture one or multiple types of polluting substances from a body of polluted gaseous substance. Flow-establishing devices can be used to set the body of polluted gaseous substance in motion through the pollutant capturing component. The pollutant capturer and mobilizer may also be mounted on any type of vehicle, with or without using flow-establishing devices.

Abstract: An air purification device includes an outer shell, an inner shell, a filter element, and an impeller. The outer shell has a first air outlet hole and a second air outlet hole arranged on opposite sides. The inner shell is disposed in the outer shell and includes a shell body and a volute. The shell body has a plurality of air inlet holes, and the filter element is arranged corresponding to the air inlet holes. One end of the volute communicates with the air inlet holes, and the other end communicates with the outer shell. The air inlet holes, the volute, and the first air outlet hole define a first air duct, and the air inlet holes, the volute, and the second air outlet hole define a second air duct. The impeller is rotatably connected to the shell body and is disposed in the volute.

Abstract: A method for separating gaseous carbon dioxide from a gas mixture having the following steps: (a) contacting the gas mixture with sorbent material to allow gaseous carbon dioxide to adsorb under ambient conditions, using a speed of the adsorption gas flow; (b0) isolating the sorbent with adsorbed carbon dioxide from said flow-through of gas mixture; (b1) injecting a stream of saturated steam at ambient conditions and inducing an increase of the temperature of the sorbent to a temperature between 60 and 110° C., (b2,b3) extracting at least the desorbed gaseous carbon dioxide while still injecting or circulating steam at ambient atmospheric pressure conditions into the unit; and (c) bringing the sorbent material to ambient atmospheric temperature conditions. The speed of steam flow through the unit in step (b1) or on average in steps (b1)-(b3) is in the range of 0.5-10 times the speed of the adsorption in step (a).

Abstract: In order to address the sustainability and environmental issues associated with conventional HVAC filters, inventive HVAC filters have been developed that are completely biodegradable and compostable and exhibit Minimum Efficiency Reporting Value (MERV) ratings that are superior to conventional HVAC filters. More particularly, it has been discovered that biodegradable electrospun nanofibers can be used to produce biodegradable HVAC filters that exhibit superior filtration performance relative to conventional HVAC filters produced from polypropylene electrostatic media or triboelectric nonwoven media.

Abstract: A method for managing a pressure swing adsorption gas treatment unit, the unit having at least N adsorbers, N being a number greater than or equal to 6. Wherein, when a first group and a second group each comprise at least one operational adsorber and at least one defective adsorber. A method including a) shutting down the unit, b) isolating the defective adsorbers from the unit, c) configuring the connections to swap the instrumentation means of the defective adsorber of the first group with the instrumentation means of the operational adsorber of the second group, so that the first group once again, so far as the control device is concerned, comprises n operational adsorbers, and d) setting the control device so that it controls the unit by running the downgraded cycle, excluding the second group.

Abstract: A taking up/receiving system (100) and a process for taking up/receiving of gas from a medical apparatus (1) are provided. The taking up/receiving system includes a feed line (6), a discharge line (8), a filter unit (4) with a filter and at least one buffer storage device. The feed line establishes a fluid connection between the medical apparatus and the filter unit. The discharge line establishes a fluid connection between the filter unit and a fluid taking up/receiving unit (7). The gas is discharged from the medical apparatus and is passed through the feed line to the filter unit and from there through the discharge line to the fluid taking up/receiving unit. The filter filters at least one gas component out of the gas that is passed through the filter unit. The one or more buffer storage device absorbs and again discharges gas from time to time.

Abstract: A method and an apparatus are disclosed for analyzing an absorption filtering medium that filters volatile organic substances in a process gas in a dehumidification plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the filtering medium, an analyzer for analyzing the concentration of total organic carbon, a sensor for detecting pressure downstream of the filtering medium, in which the state of saturation and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of the total organic carbon in the flow of gas upstream and downstream of the filtering medium.

Abstract: A method of separating carbon dioxide (CO2) from air, where the method includes: feeding air into a cooler to generate cooled air, the cooled air including nitrogen (N2), oxygen (O2), water (H2O), and CO2; feeding the cooled air to a first adsorption column including a first zeolite adsorbent to selectively capture the H2O from the cooled air, generating dried cooled air; and feeding the dried cooled air to a second adsorption column including a second zeolite adsorbent to selectively capture the CO2 from the dried cooled air, generating a tail gas, wherein the second zeolite adsorbent includes a Linde Type A (LTA) aluminosilicate zeolite that is hydrolyzed and at least partially collapsed.

Abstract: Systems and methods are provided for integrating direct air capture of carbon dioxide with capture of carbon dioxide from a point source. The systems and methods can include exposing an adsorbent to a low CO2 content gas flow (e.g., air) at conditions similar to ambient conditions to perform an initial amount of sorption of CO2. The initial sorption results in a partially loaded sorbent having a first sorbent loading. The partially loaded sorbent can then be exposed to a flue gas and/or other gas flow that contains a higher CO2 content. This allows a second sorption step to be performed using a higher CO2 content gas, resulting in an additionally loaded sorbent having a second (higher) sorbent loading. The sorbed CO2 can then be desorbed from the sorbent.