Abstract: A heating, ventilation, and/or air conditioning (HVAC) unit includes an air flow amplifier coupled to a fan deck of the HVAC unit. The air flow amplifier includes a ring having an annular cavity and an air flow inlet formed in the ring. The air flow inlet is configured to direct an air flow into the annular cavity. The air flow amplifier also includes a first annular air flow outlet formed in the ring and configured to direct a first portion of the air flow out of the annular cavity and along an inner diameter of the ring. The air flow amplifier further includes a second annular air flow outlet formed in the ring and configured to direct a second portion of the air flow out of the annular cavity and along the inner diameter of the ring.

Abstract: A bladeless ceiling fan is provided. The bladeless ceiling fan includes a housing configured to accommodate an electric motor. The housing can define one or more vents through which air enters an interior of the housing. The bladeless ceiling fan can further include an airfoil defining an interior passage. In addition, the bladeless ceiling fan includes one or more conduits. The one or more conduits extend from the housing to the airfoil such that air within the interior of the housing flows through the one or more conduits and into the interior passage defined by the airfoil.

Abstract: An apparatus for aircraft anti-icing includes a nozzle head including an inner wall and an outer wall, the inner wall defining a through-hole extending through the nozzle, the outer wall circumscribing the inner wall, wherein a plenum is disposed between the inner wall and the outer wall, and a neck extending from the outer wall of the nozzle head, the neck configured to supply a flow of hot gas to the plenum, wherein a maximum width of the inner surface of the neck is less than a maximum width of the through-hole.

Abstract: A fuel nozzle assembly includes a centerbody including an outer wall. The outer wall defines a plurality of fuel injection apertures. The fuel injection apertures include a first portion of the plurality of fuel injection apertures configured to induce a first fuel flow rate. The fuel injection apertures also include a second portion of the plurality of fuel injection apertures configured to induce a second fuel flow rate. The second fuel flow rate is less than the first fuel flow rate.

Abstract: A combustion apparatus includes a nozzle in which a fuel injection port for injecting a fuel is formed on the center of a tip. A plurality of water injection ports are formed with intervals therebetween in a circumferential direction around the fuel injection port of the tip of the nozzle, and the water injection ports are non-uniformly formed in the circumferential direction.

Abstract: Systems and Apparatus for a personal ventilation system that provides a personalized column of clean air surrounding a user's space is presented. The personal ventilation system includes an air purifier with a fan and an annular gap downstream of the fan. The annular gap has an inner radius that is within 95% of the outer radius. The annular gap structure allows the air purifier to produce a column of air with an entrainment ratio lower than other commercially available fan. At a distance of 1.5 meters, the air purifier is configured to have an entrainment ratio of lower than 40%. The air purifier also has a removable filter located upstream of the fan. The ventilation system is capable of delivering highly-localized filtered air to a user or location.

Abstract: Described is a fan assembly comprising a body comprising an inlet, an outlet, and a means for generating an air flow through the body. The fan assembly also comprises a nozzle mountable on the body for receiving the air flow from the body and for emitting the air flow, wherein the body and the nozzle have cooperative inclined surfaces configured to assist alignment of the nozzle on the body.

Abstract: A laundry dryer includes a stationary filter for filtering-out fluff from a process air stream flowing through a process air channel of the laundry dryer, the filter in a compartment inclined at an angle relative to a through-flowing process air stream and including a cleaning opening in an upper region of the filter for directing cleaning liquid onto a filter surface of the filter, and a cleaning device for cleaning of the filter.

Abstract: A mist blower for blowing chemicals, such as pesticides, onto objects. The mist blower includes a powered centrifugal blower having a rectangular-shaped air discharge opening formed in the blower housing thereof. A plurality of air discharge tubes have their lower ends in communication with the air discharge opening. The tubes are preferably radially spaced from one another. Spray nozzles are positioned in each of the air discharge tubes for mixing the chemicals with the air being blown through the discharge tubes. The blower housing may be rotated so that air discharge tubes may direct misted air in different directions from the blower.

Abstract: This invention relates to a ceiling mounted air circulating apparatus comprising, in combination: a motor; an essentially centrally located radial or axial air impeller; air guiding means; optional airflow enhancement by means of air amplification means; optional centrally located wiring path from an electrical power source to a wiring enclosure suitable for hanging a lighting fixture or chandelier; and decorative embellishments, ail of which are arranged to blend with the architectural style of a space in a manner similar to a decorative ceiling medallion, the plariform of which, when viewed from below may be circular, rectangular, or polygonal. Optionally, the apparatus of the present invention may embody any of the following; heating, cooling, filtration means, positive ion generation means, and / or air sterilization means.

Abstract: A gas turbomachine nozzle includes a base portion having a first fluid inlet and a second fluid inlet, and an outlet portion having one or more outlets. A connection section fluidically connects the base portion and the outlet portion. An orifice plug is arranged in the base portion at the second fluid inlet. The orifice plug includes one or more openings fluidically connecting the second fluid inlet and the connection section.

Abstract: A fan assembly for generating an air flow within a room includes an impeller and a motor for driving the impeller to draw an air flow into the fan assembly, and a casing having an interior passage with a scroll section having a cross-sectional area that decreases from a scroll inlet section to a scroll outlet section. The scroll inlet section has an inlet port for receiving the air flow and the scroll outlet section has an outlet port for returning a first portion of the air flow to the scroll inlet section. The scroll section includes an air outlet for emitting a second portion of the air flow from the casing. The casing defines a bore through which air from outside the fan assembly is drawn by the air emitted from the air outlet.

Abstract: A fan assembly for creating an air current includes an air outlet mounted on a stand. The stand includes a base and a body tiltable relative to the base. Each of the base and the body has an outer surface shaped so that adjoining portions of the outer surfaces are substantially flush when the body is in the untilted position.

Abstract: A nozzle for a fan assembly includes an air inlet, a plurality of air outlets, and an annular casing having an annular inner wall defining a bore through which air from outside the nozzle is drawn by air emitted from the air outlets and an outer wall extending about the inner wall. The annular casing includes an air passage for conveying air to the air outlets. The air passage has an inlet section located between the inner wall and the outer wall and extending about the bore of the nozzle, and a plurality of outlet sections each extending across the bore for conveying air to a respective air outlet. To achieve an even air pressure at each end of each of the outlet sections, the inlet section of the air passage is arranged to convey air to each end of each of the outlet sections.

Abstract: A fan includes a base and a nozzle mounted on the base. The base includes an impeller and a motor for driving the impeller to generate an air flow. The nozzle includes an air inlet, an air outlet, and an annular casing which defines a bore through which air from outside the fan is drawn by air emitted from the air outlet. An electrostatic precipitator is located within the bore of the nozzle for treating the air drawn through the bore.

Abstract: A fan includes a base and a nozzle mounted on the base. The base includes an impeller and a motor for driving the impeller to generate an air flow. The nozzle includes an air inlet, an air outlet, and an annular casing which defines a bore through which air from outside the fan is drawn by air emitted from the air outlet. An ionizer is located within the bore of the nozzle for treating the air drawn through the bore.

Abstract: A liquid spraying system comprising a plurality of spray nozzles mounted in dependent fashion a liquid supply boom that travels in a field in a direction of movement. The liquid spray nozzle each have a first liquid discharge orifice and deflector flange for directing discharging liquid at a first angle to the vertical in a leading direction, and a second discharge orifice and deflector flange for simultaneously directing liquid in a trailing direction from a different elevation and at a second angle to the vertical different from the first angle for complete coverage of plant foliage.

Abstract: A multiple nozzle differential fluid delivery head is disclosed. The fluid delivery head includes a body that defines a fluid chamber having a longitudinal axis. The body includes an inlet for connection to a fluid source, and the inlet is in fluid communication with the fluid chamber. The fluid delivery head includes a plurality of outlet ports connected to and extending away from the body. Each outlet port has an interior space in fluid communication with the fluid chamber. The fluid delivery head includes a nozzle insert removably secured in an outer end of each outlet port. At least one nozzle insert has a fluid delivery aperture in fluid communication with the interior space of its associated outlet port for delivering fluid out of the interior space of its associated outlet port. One or more of the outlet ports is angled away from a plane normal to the axis of the fluid delivery head.

Abstract: A bladeless air fan includes a host and an airflow guiding frame. The host divides into a housing section to hold an airflow generator and a pivoting section to include two first pivoting portions. The airflow generator is connected to an airflow guiding manifold extended from the housing section to the pivoting section. The airflow guiding frame includes an air discharging portion and an airflow guiding passage and two second pivoting portions being annular to form two air intake ports communicating with the airflow guiding passage. The second pivoting portions are rotatably coupled with the first pivoting portions such that the airflow guiding passage communicates with the airflow guiding manifold. The air discharging portion encircles an airflow passage being formed at an inner diameter allowing the housing section to pass through to enlarge the range of the second pivoting portions rotating against the first pivoting portions.

Abstract: A multi-function shower head structure includes a connection base, a valve bolt, a guide bolt, a housing and a plurality of spray units. The connection base is used to connect external water and is connected with the valve bolt. The guide bolt is pivoted to the valve bolt. The guide bolt has an axial conducting hole and a guide channel to communicate with the conducting hole. The conducting hole can be rotated about the valve bolt, such that the valve bolt guides the water of the connection base to the conducting hole of the guide bolt for a guide channel to output water. The housing has a hole seat. The hole seat has a pivot hole for connection of the guide bolt. The spray units are disposed in the housing. Each spray unit has a water chamber. The guide channel of the hole seat has a plurality of spaced branch channels corresponding to the respective water chambers to communicate with the pivot hole.

Abstract: The present invention provides a gas burner (10) including: a distributor means (50) having at least one distribution chamber to distribute an air gas mixture around said distributor (50), said burner (10) including a plurality of flame ports (70) through which said gas mixture can pass and be ignited; at least one injector (39) associated with said distributor (50), said at least one injector (39) being positioned to inject gas into said at least distribution chamber via a venture formed of a vertically directed passage and transition port (64) and at least one venturi extension extending away from said transition port (64).

Abstract: A burner ring for a gas burner, the burner ring including an outer circumference and an inner circumference, a distribution chamber having gas outlets to the outer circumference of the burner ring, a transfer ignition groove that is outwardly open on one side and extends between the inner circumference of the burner ring and the outer circumference of the burner ring, a gas conducting channel into which the transfer ignition groove opens at least partially, and at least one gas supply opening between the distribution chamber and the gas conducting channel, wherein the gas conducting channel and the transfer ignition groove are arranged mutually symmetrically, and wherein the at least one gas supply opening is offset in a region of the gas conducting channel at an angle relative to the transfer ignition groove.

Abstract: An adjustable module spray head and adjusting method thereof comprises a module core unit having a holder, a distributing set rotating relative to the holder, two plugs, and a rotatable positioning structure between the holder and the distributing set; the module core unit is used to assembled with various spray heads with different watering levels to meet different demands by selecting an installing position of a levering pin of the rotatable positioning structure and by removing at least one stator or a rotor of the adjustable levering assembly.

Abstract: Gas burner provided with a plurality of concentric flame crowns, and comprising a first central burner to supply a peripheral flame ring, a second annular burner surrounding the central burner at a defined distance and able of supplying at least a respective peripheral ring, a burner body apt to be mounted on the surface of a cooking hob, a first gas inlet in communication with the body, a first vertical gas injector, the central burner being provided with a first chamber for the diffusion of the air/gas mixture, a second gas inlet in communication with the body, wherein the second annular burner is provided with two separate chambers for the diffusion of the mixture, wherein the second gas inlet is in communication with the two separate chambers through suitable injection and conveying means, which comprise two distinct injectors in communication with the second gas inlet, and two respective horizontal Venturi pipes each of which being able of supplying with the air/gas mixture a respective of the two diffus

Abstract: A handheld showerhead assembly is provided which provides for a plurality of spray patterns. In a preferred embodiment, the showerhead assembly provides for four spray patterns including an oval shaped spray pattern. The showerhead is rotatably attached to the handle so that the showerhead can be rotated relative to the handle without altering spray patterns, other than their orientation. Furthermore, the handheld shower assembly includes a push button controller located within the handle.

Abstract: A multiple configuration shower device includes at least one handle (2) connected to a flexible duct for supplying water and at least one water dispensing element (5). The dispensing element (5) is provided with a plurality of water ejection faces (5a, 5b, 5c, 5d), each provided with respective nozzles (U), and comprising at least one connector (6), provided between the handle (2) and the dispensing element (5), which is adapted to allow the manual rotation of the dispensing element (5) about at least one axis which is substantially perpendicular to the handle (2), so as to arrange selectively at least one of the ejection faces (5a, 5b, 5c, 5d) substantially in the direction of the user.

Abstract: The present invention concerns a burner assembly that includes a burner body having a combustible gas chamber from which a combustible gas is distributed to a plurality of burner ports at which the combustible gas can be combusted and a stability chamber in gas-flow communication with the combustible gas chamber for maintaining the combustion of the combustible gas in the stability chamber whenever the combustion of the combustible gas at the plurality of burner ports is disturbed, whereby the combustion of the combustible gas at the plurality of the burner ports may be resumed upon the cessation of the disturbance. The burner assembly can also include a burner cap for closing off the top of the burner body so as to substantially preclude the escape of the combustible gas from the combustible gas chamber, the stability gas chamber and the burner ports at the top of the burner body.

Abstract: Injection nozzles for use in a gas distribution device are disclosed. In one aspect, the injection nozzle may include: a tube having a fluid inlet and a fluid outlet; wherein the inlet comprises a plurality of flow restriction orifices. In another aspect, embodiments disclosed herein relate to an injection nozzle for use in a gas distribution device, the injection nozzle including: a tube having a fluid inlet and a fluid outlet; wherein the fluid inlet comprises an annular orifice surrounding a flow restriction device. Injection nozzles according to embodiments disclosed herein may be disposed in a gas distribution manifold used in a vessel, for example, for conducting polymerization reactions, spent catalyst regeneration, and coal gasification, among others.

Abstract: A nozzle assembly and method is configured to apply coherent jets of coolant in a tangential direction to the grinding wheel in a grinding process, at a desired temperature, pressure and flowrate, to minimize thermal damage in the part being ground. Embodiments of the present invention may be useful when grinding thermally sensitive materials such as gas turbine creep resistant alloys and hardened steels. Flowrate and pressure guidelines are provided to facilitate optimization of the embodiments.

Abstract: Spray pipe of a conveyor ware washer for spraying items to be washed with liquid, comprising a plurality of nozzles, which are arranged one behind another in the longitudinal direction of the pipe, and an inlet, from which liquid can flow in the longitudinal direction of the pipe to the nozzles, characterized in that, at least in the case of two nozzles one following another in the liquid supply direction, the nozzle located closer to the inlet has a nozzle opening with a larger opening cross section than the nozzle adjacent to it further away from the inlet.

Abstract: The present invention relates to liquid dispensing devices having discharge nozzles. The discharge nozzle has a flow control device. The flow control device includes a check valve and an outlet. The check valve is capable of creating a vacuum pressure cycle during closing. The outlet is formed from at least one perforated plate. The perforated plate has a plurality of apertures therethrough. The plurality of apertures include at least two differently sized sets of apertures. The at least two differently sized sets of apertures include a larger size set of apertures and a smaller size set of apertures. The larger size set of apertures are centrally located within the perforated plate. The present invention helps to concentrate the greatest vacuum pressure on a decaying portion of a stream of liquid right in the center of the outlet of the discharge nozzle.

Abstract: Methods and apparatus having a flow gradient created from a gas distribution plate are provided. In one embodiment, the method and apparatus are particularly useful for, but not limited to, depositing a silicon film for solar cell applications. The apparatus for depositing a uniform film for solar cell applications includes a processing chamber, and a quadrilateral gas distribution plate disposed in the processing chamber and having at least four corners separated by four sides. The gas distribution plate further includes a first plurality of chokes formed through the gas distribution plate, the first plurality of chokes located in the corners, and a second plurality of chokes formed through the gas distribution plate, the second plurality of chokes located along the sides of the gas distribution plate between the corner regions, wherein the first plurality of chokes have a greater flow resistance than that of the second plurality of chokes.

Abstract: The present invention is an irrigation method and system for providing a user-defined flow rate to a field using variable sized orifices. The irrigation method and system includes providing a source of irrigation water. A first discrete area to be irrigated is defined and the volume of irrigation water to be disbursed to the first discrete area is determined based on the type of crop. A length of continuous irrigation conduit is provided so that the irrigation conduit is in fluid communication between the source of irrigation water and the first discrete area. The required diameter of each orifice is calculated based on the user-defined flow rate. Each orifice is made in the irrigation conduit as the conduit is installed in the field so that the irrigation water is disbursed to the first discrete area in an amount approximate to the user defined flow rate.

Abstract: A bottle washing nozzle which is capable of washing bottles having openings of different diameters and which is capable of washing bottles having projections, indentations, and a square cross-section, or the like, with good efficiency. The nozzle includes a central jet tube a first jet orifice which jets in a vertical direction, second jet orifices which jet in an oblique upward direction in the base section of the central jet tube, and an discharge controlling means in the outer circumferential section of the nozzle main body, below the second jet orifices.

Abstract: A gas supplying apparatus for supplying deposition gas onto a substrate surface, the gas supplying apparatus comprising: a gas supplying ring with one or more gas supplying channels formed along the interior of the gas supplying ring and with a plurality of gas distribution channels directed toward a center of the gas supplying ring; and a plurality of adapters with gas nozzles connecting to the gas distribution channels, respectively, that detachably connect to the interior of the gas supplying ring, wherein the gas nozzles have a variety of injection configurations.

Abstract: A spraying gun includes a gun body, an adjusting device, a guide pipe, and a spraying nozzle. The adjusting device includes an rotatable knob, and a connecting member. Thus, the sprinkling manner of the spraying gun is adjusted by rotating the rotatable knob of the adjusting device, thereby facilitating a user operating the spraying gun. In addition, the user controls the sprinkling manner of the spraying gun easily, so that the water injected outward from the spraying gun is controlled exactly, thereby preventing the injected water from wetting the user's clothes.

Abstract: Rinsing equipment, especially for mixing containers, including a socket housing with an interior pressure rinsing valve and an upright valve tube, wherein a spraying plate is seated on this valve tube. The spraying plate may have a trough-shaped depression or run out into star-shaped guiding cross members. The spraying equipment may include several upwardly or horizontally directed nozzles. The spraying plate may also include a water distribution chamber.

Abstract: A nozzle ring assembly comprising a nozzle ring having a plurality of recesses for accepting a plurality of nozzle tips; a plurality of a first type of nozzle tips from which water emanates, the first type of nozzle tips being arranged about the face of the nozzle ring so that water emanating therefrom contacts the fireproofing material at a first distance from the nozzle ring, wherein the first type of nozzle tips provides a water spray for at least essentially uniformly mixing water and the fireproofing material; and a plurality of a second type of nozzle tips from which water is emanates, the second type of nozzle tips being arranged about the face of the nozzle ring so that water emanating therefrom contacts the fireproofing material at a second distance greater than the first distance, wherein the second type of nozzle tips provides a water spray that provides additional impact pressure of the fireproofing material against the surface.

Abstract: A nozzle assembly and method is configured to apply coherent jets of coolant in a tangential direction to the grinding wheel in a grinding process, at a desired temperature, pressure and flowrate, to minimize thermal damage in the part being ground. Embodiments of the present invention may be useful when grinding thermally sensitive materials such as gas turbine creep resistant alloys and hardened steels. Flowrate and pressure guidelines are provided to facilitate optimization of the embodiments.

Abstract: A two phase fuel oil atomizer utilizing a secondary media such as high pressure steam or air to assist in the atomization of heavy fuel oil, while reducing NOx and other polluting emissions. The fuel oil atomizer comprises a mixing plate and a sprayer plate which are configured to discharge atomized fuel oil at varying spray angles in order to provide staging of the atomized fuel as it exits the sprayer plate with the surrounding combustion chamber air to provide a fuel/air ratio that is appropriately rich and lean in order to allow lower flame temperatures. NOx generation is accordingly reduced at the lower flame temperatures. With atomized fuel droplet size small enough to enable rapid fuel evaporation and complete combustion, low CO, opacity and particulate generation are achieved with minimum excess oxygen.

Abstract: This invention describes an ignition flame for a gas cooking burner that uses an ignition flame system to reignite a gas burner when the burner's flame is extinguished due to drafts or cross winds, when the gas burner is set on very low settings, even in the presence of a side wind.

Abstract: The present invention comprises a casing with an opened end for receiving a liquid and a holding end where the liquid is stored. Between the open end and the holding end there narrow neck. A ball is placed into the opened end of the casing, so that lodging the ball into the neck will seal the neck area so that the liquid contained within the holding area will remain in the holding area until the ball is dislodged upon impact. Attached to the opened end of the casing is a nozzle. The nozzle serves two purposes, first it assures that the liquid contained within the casing does not quickly run out of the device upon impact minimizing the spray area covered by the liquid. Additionally the nozzle contains a number of holes distributed throughout the surface of said nozzle, so that the passage of liquid through the nozzle will cause the device to flail erratically, further maximizing the area sprayed by the device.

Abstract: This invention incorporates a multi-ring burner assembly utilizing at least two flame rings to gently and evenly warm food and a third flame ring in conjunction with the first two flame rings for cooking food.This design has the further advantages of easy replacement of both the igniters and the gas jets from the top of the appliance without having to remove the unit from the appliance.

Abstract: A showerhead used for dispensing gas over a wafer in chemical vapor deposition (CVD), especially for CVD of metals. The patterns of holes is tailored to compensate for thermal and other effects, in particular by increasing the density of holes toward the periphery of the wafer in three or more zones. Such a variable pattern is particularly useful for liquid precursors that are atomized in a carrier gas, in which case a second perforated plate in back of the showerhead face can be eliminated, thereby reducing the flow impedance and the required pressure of the liquid-entrained gas, which tends to deposit out at higher pressures. The reduce flow impedance is particularly useful for CVD of copper.

Abstract: A flow control device for mounting on a plural component spray gun for controlling the fan spray pattern of mixed components sprayed from the spray gun. A plurality of circular holes are formed in a single row in the flow control device at angles with respect to each other, so as to precisely control the flow of mixed material sprayed from the spray gun, without atomizing such material to thereby reduce harmful emissions.

Abstract: The present invention is directed to a manifold which includes a foam generating zone having means for receiving a foamable solution and air therethrough to produce a foam, a streaming discharge zone wherein the streaming discharge zone includes a first plurality of aperture surfaces of a first diameter and a second plurality of aperture surfaces of a second diameter larger than said first diameter and a buffer zone operably communicably associated with the foam generating zone and streaming discharge zone with means for impeding flow of the foam therebetween.

Abstract: The present invention is directed to a manifold which includes a foam generating zone having means for receiving a foamable solution and air therethrough to produce a foam, a streaming discharge zone wherein the streaming discharge zone includes a first plurality of aperture surfaces of a first diameter and a second plurality of aperture surfaces of a second diameter larger than said first diameter and a buffer zone operably communicably associated with the foam generating zone and streaming discharge zone with means for impeding flow of the foam therebetween.

Abstract: This invention relates to a ceiling mounted air circulating apparatus comprising, in combination: a motor; an essentially centrally located radial or axial air impeller; air guiding means; optional airflow enhancement by means of air amplification means; optional centrally located wiring path from an electrical power source to a wiring enclosure suitable for hanging a lighting fixture or chandelier; and decorative embellishments, ail of which are arranged to blend with the architectural style of a space in a manner similar to a decorative ceiling medallion, the plariform of which, when viewed from below may be circular, rectangular, or polygonal. Optionally, the apparatus of the present invention may embody any of the following; heating, cooling, filtration means, positive ion generation means, and/or air sterilization means.

Abstract: This invention relates to a ceiling mounted air circulating apparatus comprising, in combination: a motor; an essentially centrally located radial or axial air impeller; air guiding means; optional airflow enhancement by means of air amplification means; optional centrally located wiring path from an electrical power source to a wiring enclosure suitable for hanging a lighting fixture or chandelier; and decorative embellishments, ail of which are arranged to blend with the architectural style of a space in a manner similar to a decorative ceiling medallion, the plariform of which, when viewed from below may be circular, rectangular, or polygonal. Optionally, the apparatus of the present invention may embody any of the following; heating, cooling, filtration means, positive ion generation means, and / or air sterilization means.

Abstract: This invention relates to a ceiling mounted air circulating apparatus comprising, in combination: a motor; an essentially centrally located radial or axial air impeller; air guiding means; optional airflow enhancement by means of air amplification means; optional centrally located wiring path from an electrical power source to a wiring enclosure suitable for hanging a lighting fixture or chandelier; and decorative embellishments, ail of which are arranged to blend with the architectural style of a space in a manner similar to a decorative ceiling medallion, the plariform of which, when viewed from below may be circular, rectangular, or polygonal. Optionally, the apparatus of the present invention may embody any of the following; heating, cooling, filtration means, positive ion generation means, and / or air sterilization means.