Abstract: A system for removing particulate matter from a multiphase stream comprising gas, liquid and the particulate matter. The system comprises a first vessel for receiving the multiphase stream and separating a majority of gas from the multiphase stream and collecting a slurry of liquid and particulate matter; a second vessel for receiving the slurry and causing separation of the particulate matter from the liquid and for generating a pressure head of liquid against the particulate matter; a third vessel for receiving the particulate matter from the second vessel and collecting the particulate matter until a pre-determined mass or volume of particulate matter is collected; and an outlet in the third vessel for conveying the particulate matter out of the third vessel.

Abstract: A transportable system for generating aqueous ozone solution includes a hand truck carrying one or more auxiliary compartments containing respective mixing assemblies that are fluidically coupled to an ozone supply unit. At least one mixing assembly includes a first flow path for water to flow through and a second flow path in parallel with the first flow path. The first flow path includes one or more ozone intake ports that are fluidically coupled to one or more ozone output ports of the ozone supply unit. The second flow path includes a control valve that selectively permits a portion of the water to flow through the second flow path to produce a negative pressure in the first flow path so that ozone is drawn into the first flow path and mixed into the water flowing through the first flow path to produce an aqueous ozone solution.

Abstract: The present disclosure relates generally to air filtration devices. More specifically, but not exclusively, the present disclosure relates to an air filtration device comprised of a copper (or copper alloy) medium to inactivate airborne pathogens (e.g., viruses, bacteria, coronaviruses, COVID-19, etc.) and mitigate harmful exposure to said pathogens. The copper medium is a porous mesh (i.e., copper wool) that is positioned within or on a structure to provide support. The air filtration device may be positioned in an HVAC system such that an air stream flows through the copper medium to inactivate airborne pathogens, such as viruses, in the air stream. The air filtration device may be used in combination with, or in addition to, existing HVAC system conventional air filters (e.g., HEPA filters). The air filtration device includes a copper medium positioned on a face mask to inactivate airborne pathogens during respiratory processes.

Abstract: A filter element is provided that is preferably a side entry air filter having an air filter media pack, a housing seal and a frame that has a clamping projection, a pivot projection and/or guide members. The clamping projection can define a non-linear bearing surface that may be chevron shaped to provide for interface and potential alignment benefits. The housing seal may be a wave seal that undulates.

Abstract: A monolithic open cell structure apparatus including an open cell structure housing including a first side, a second side opposite the first side, a first opening located at the first side, and a second opening located opposite the first opening at a second side. The monolithic open cell structure apparatus also including a filtration portion extending from the first side to the second side within the open cell structure housing. The monolithic open cell structure apparatus further including a retaining partition that at least partially encloses the filtration portion within the open cell structure housing. The monolithic open cell structure apparatus is a single piece including a unitary structure.

Abstract: The invention refers to a filter arrangement for filtering dust-laden air (7) generated by a hand-guided power tool (1), in particular a sander or a grinder, during operation of the power tool (1). The filter arrangement comprises a filter cartridge (13) having a hollow casing (14), a filter element (22) located inside the casing (14), an air inlet port (15) located downstream in respect to an airflow (8) through the filter cartridge (13) and in respect to the filter element (22) and adapted to be pneumatically connected to the power tool (1) in order to allow the dust-laden air (7) generated by the power tool (1) to flow into the casing (14), and an air outlet port (20) located upstream in respect to the airflow (8) through the filter cartridge (13) and in respect to the filter element (22), the air outlet port (20) adapted to allow filtered air (9) leave the filter cartridge (13).

Abstract: A mist extraction system is provided that includes a plenum box having an inlet configured to be coupled in fluid communication with a machine tool enclosure. A blower is coupled in fluid communication with the plenum box and is configured to draw air into the plenum box from the machine tool enclosure via the inlet of the plenum box and exhaust the air back into the machine tool enclosure via an outlet of the blower. A baffle plate is arranged in the plenum box to redirect the air drawn into the plenum box through the inlet of the plenum box and a filter panel is arranged in the plenum box to filter the air redirected by the baffle plate prior to the air entering the blower. A collector arranged to collect mist from the air condensed on the baffle plate and the filter panel.

Abstract: Systems and methods are described for supplying a rinsing liquid including ultrapure water and an ammonia gas. The system includes an ultrapure water source and a gas mixture source in fluid communication with a contactor. The gas mixture includes ammonia gas and a carrier gas. The system includes a control unit configured to adjust a flow rate of the ultrapure water source such that an operational pressure of the contactor remains below a pressure threshold. The system includes a compressor configured to remove a residual transfer gas out of the contactor. The contactor generates a rinsing liquid having ultrapure water and a concentration of the ammonia gas dissolved therein. The system includes a pump in fluid communication between the contactor and an outlet. The pump is configured to deliver the rinsing liquid having a gaseous partial pressure below the pressure threshold at the outlet.

Abstract: A method of obtaining a numerical model is disclosed. The numerical model correlates estimated capillary tube output diameter values to minimum pressure for gas bubble generation (MPGBG) values. An MPGBG value of each capillary tube in the reference group is measured for a liquid. An output diameter of each of the capillary tubes is measured by a microscope apparatus. A numerical model that correlates estimated capillary tube output diameter values to MPGBG values for the liquid is calculated. A method of estimating an output diameter of a capillary tube includes the following steps. An MPGBG value of the capillary tube for a liquid is measured, and the measured MPGBG value is input into the numerical model to estimate the capillary tube output diameter value.

Abstract: One embodiment includes a contamination limiter for a spacecraft. The contamination limiter includes a body having an interior. An inlet is fluidly coupled to the interior of the body. A collector plate is positioned within the interior of the body. A UV light source is directed at a surface of the collector plate. An exterior vent is fluidly coupled to the interior of the body. A volatile condensable material from the spacecraft is photofixed by the UV light exposure to the collector plate prior to venting through an exterior vent to an exterior of the spacecraft.

Abstract: A virus elimination assembly for sterilizing air includes a base that is hollow. An intake vent is pivotally coupled to the base to direct air into the base. A canister is coupled to the base and the canister is in fluid communication with an interior of the base. A filter tray is slidably positioned in the canister and a filter is integrated to pass air therethrough. A blower tray is slidably positioned in the canister and a blower is integrated therein to blow air when the blower is turned on. A light tray is slidably positioned in the canister and a light emitter is integrated therein to eliminate viruses and bacteria. An exhaust vent is pivotally integrated into the canister to direct the air that has been sanitized by the light emitter out of the exhaust vent.

Abstract: A filter element for filtration of an air stream includes: a folded filter medium forming a bellows, the filter medium being constructed at least in two layers and having a particle filter layer, an electrically conductive filter layer, and at least one edge band, the at least one edge band being connected to at least one outer side of the bellows. At least one further edge band is connected to an outer side of the bellows. The at least one further edge band is electrically conductive. The at least one further edge band forms a pocket open towards one side.

Abstract: Disclosed is an air purifier, which is installed outside, and rotates in a blowing direction of wind, and purifies fine dust, yellow dust, heavy metal, and the like existing in the air through a filter. The air purifier includes: a case, which has one side formed with an air inlet, the other side formed with an air outlet, and a lower surface formed with a coupling recess; a filter, which is mounted to the other side of the case; a support part, which is coupled to the coupling recess formed on the lower surface of the case to support the case, and includes a rotating body connected so that the case rotates; and a rudder, which is connected to an upper surface of the case and adjusts a direction so that the case rotates according to a wind direction.

Abstract: An HVAC system for a multi-unit building having a riser stack in flow communication with a single unit HVAC system. The single unit HVAC system has a first heat exchanger thermally connected to the riser stack, a second heat exchanger thermally connected to a fluid distribution system within the unit, and a closed loop fluid flow path extending between the first and second heat exchangers. The first heat exchanger exchanges heat between a riser stack fluid in the riser stack and the closed loop fluid in the closed loop fluid flow path and the second heat exchanger exchanges heat between the closed loop fluid and a distribution fluid of the fluid distribution system.

Abstract: A gas humidifier can have a gas channel comprising an inlet and an outlet. A portion of the gas channel can have a region having a reduction in cross-sectional area relative to the portions of the gas channel outside of the region. A water conduit can extend from the region to a water reservoir. A heating element can heat water entering the region from the water conduit. Water vaporized using the heating element can join the flow of gases passing through the gas channel in use.

Abstract: The present invention relates to vacuum cleaner filter bags composed of waste products of the textile industry. In addition, possibilities of use for waste products of the textile industry for vacuum cleaner filter bags are provided. The vacuum cleaner filter bag comprising a wall surrounding an inner space and composed of an air-permeable material and an inlet opening introduced into the wall, characterized in that the air-permeable material comprises at least one layer of a nonwoven that comprises fibrous and/or pulverulent recycled textile material and/or cotton linters, with the specific volume of the layer of the nonwoven amounting to at least 20 cm3/g.

Abstract: An air treatment system may create an air flow pattern in a vehicle interior space, using air discharges in multiple directions and louvers such that some vanes within a louver are not parallel to other vanes within the louver. An air treatment system may provide bulk air flow to the vehicle interior and directed airflow to a driver region. An air flow system may comprise, internally, a constriction bounded by an edge of a UV light shield and an edge of a filter housing. Such air treatment systems, using filtration and UV light, effectively remove or kill viruses and other pathogens, for use in buses and similar vehicles.

Abstract: In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

Abstract: The device for evaporating volatile substances comprises a casing (1) provided with a housing for the placement of a refill (2) containing the volatile substances, and is characterised in that said casing (1) comprises a surface (3) provided with at least one coupling element (5) in order to couple an additional element (4), said additional element comprising a frame (7) and a releasable sheet (8). It provides an evaporation device that can be easily customised.

Abstract: Described herein are devices and components for same, e.g., filters cartridges, which are able to filter contaminants while allowing active ingredients, e.g., nicotine, to pass through.