Abstract: An aroma dispensing method and device which includes: an air pump (2) for supplying air; six element smell bottles (5a)-(5f) for containing smell materials and for holding smells generated by blowing the air against the smell materials; and six solenoid valves for controlling of the air to be introduced into the element smell bottles. When the plurality of smells generated in the six element smell bottles are blended in specific mixing proportions, the mixing proportions are determined by numbers or time periods of opening and closing per second of the six solenoid valves respectively connected to the six element smell bottles; and proportions of the numbers or time periods of opening and closing per second of the solenoid valves correspond to the mixing proportions.

Abstract: The present invention is directed toward an air freshener that is constructed and arranged to be secured to the supporting shaft of a ceiling fan. One embodiment of the device includes a scented ring of wickable material having an inner aperture and split through one side. The aperture is sized to cooperate with the supporting shaft of the fan and the split allows the scented ring to be sprung apart for easy installation of the device about the supporting rod. The wickable material includes properties that allow the device to remain in position about the supporting rod once installed while wicking a fragrance composition substantially to its surface for distributing a fragrance evenly throughout an open area, such as a large room. The inner and bottom surfaces of the scented ring may include a polymeric coating to prevent the fragrance composition from wicking to a supporting surface.

Abstract: A controlled odor generator, comprising a central processing unit, at least one micropump unit, a sensor unit and a fan. The micropump unit is housed in a casing containing odorous fluid and has a micropump array for ejecting the odorous fluid in tiny droplets. The central processing unit regulates operation of the micropump unit, allowing to control timing quantity and mixture of spread odor. The sensor unit provides the central processing unit with environmental data, like temperature, air density and humidity, as well as human body states for controlling the micropump unit. Environmental changes are followed by a change of spraying of odor, and varying taste and demand are adapted to.

Abstract: An apparatus for removing unpleasant odour by means of a first section (10) through which the input gas is constrained to travel and which treats the input gas by exposure to ozone and a second section (11) which converts into oxygen any remaining ozone in the gas stream issuing from the first section. The first and second sections are spaced apart by an interconnecting duct. The ozone is produced from air in the input gas, or alternatively the ozone is produced from air outside the input gas and introduced into the input gas in the first section.

Abstract: A flameless candle that releases a volatile active includes at least one LED positioned in a tip (106), a cartridge mount (128), and a support structure (102, 141). The at least one LED emits a flickering light that emulates a flame of a candle. The cartridge mount (128) receives and secures a replaceable cartridge (104a) containing a volatile active to be released into the atmosphere over time. The support structure (120, 141) supports the at least one LED and the cartridge mount (128). The support structure (120, 141) is configured to allow airflow across the replaceable cartridge (104a) when the replaceable cartridge (104a) is mounted in the cartridge mount (128).

Abstract: A deputation process and corresponding apparatus for purification of the air of a closed environment characterized by indoor pollution, in which, in order to reduce the pollution, a water tank is provided that contains a multiplicity of active biomasses designed to absorb and metabolize the pollutant substances that are contained in the water and come from the air of the closed environment, and elements of water-air contact, designed precisely to transfer the pollutant substances from the closed environment into the water within the tank.

Abstract: We describe an adjustable table-top air freshener composed of a case that comprises an internally hollow body, provided with four pairs of slots arranged in couples around the perimeter of its lateral wall, and a cover which presents through-holes in its surface. The case body is designed to hold four absorbent pieces of aromatizing product, executed in twos with a three-point star and circular configuration with alternately sunken and protruding portions on its perimeter edge, of a diameter slightly smaller than the inside diameter of the case body and stacked alternately in the interior of the case body, with a star-shaped piece occupying the bottom position. The cover presents the formation of ribs of a predetermined height protruding from its inner face, interposed respectively between successive openings, which assure the separation between said cover and the absorbent piece located in the upper position.

Abstract: A long life scent dispersing mat apparatus uses an outer housing with apertures appointed to disperse a scent or fragrance. The fragrance is provided in a fragrant body which is a springy spongy rubber or polymeric sponge soaked with essential oils that have high vapor pressure at ambient temperatures. The fragrant body is inserted into an inner pouch which has small apertures and the stagnant air within the inner pouch attains saturation of fragrance vapor, thereby stopping further evaporation of the essential oils. When the scent-dispersing mat is stepped on, the inner pouch releases the saturated fragrant vapor into the interior of the outer housing and it is released to room air through apertures provided in the outer housing. When force on the mat is released, the fragrant body recovers its original shape and the inner pouch draws fresh make up air and essential oils volatilize until saturation is reached.

Abstract: The present invention provides for an air freshener in the shape of a sports figure that has a sports ball-shaped piece attached via a flexible strip that moves freely towards and away from the sports figure as the air-freshener moves. The air-freshener comprises a sports figure-shaped air freshener, a ball-shaped piece, a hanger for hanging the air freshener from a rearview mirror and a flexible strip that attaches the ball-shaped piece to the hanger. In one preferred embodiment, the air freshener depicts a football player, and the ball-shaped piece is shaped like a football. In another preferred embodiment, the air freshener depicts a soccer player, and the ball-shaped piece is shaped like a soccer ball. As the air freshener moves, the flexible strip moves and the ball moves towards and away from the sports figure.

Abstract: The present invention provides a hydrogen peroxide indicator that includes a substrate on which is disposed an indicator composition that includes at least one of a select group of colorants. As a result of contact with hydrogen peroxide, the colorants change color, and even become colorless, thereby providing an indication of the presence of hydrogen peroxide.

Abstract: Disclosed are apparatuses and methodologies for respectively delivering fragrances to desired environments. Formulations including volatile methylsiloxane fluid provide a clear, VOC-exempt, low surface tension fluid that will evaporate completely at room temperature. Because methylsiloxane fluid is itself an odorless fluid, it does not obscure or alter combined fragrances being otherwise delivered.

Abstract: An air freshener of the invention includes a rotating box, a fixed base disposed on the rotating box, the rotating box rotating with respect to the fixed base, and a perfume box filled with a perfume, which can rotate with the rotating box. The rotating box has an annular shape in cross section and has an internal space for receiving and embedding the perfume box therein. Air holes are formed in the fixed base for exposing a portion of the perfume box when the rotating box is rotated with respect to the fixed base. The air freshener of the invention is applicable to be used inside a car or a room, and is capable of both refreshing the air and adjusting the release amount of the diffused perfume vapor.

Abstract: A diffusion device comprises a bottom portion having a bottom cover disposed thereon. The device further includes a top portion having a top cover disposed atop the bottom portion and a pump assembly disposed between the top cover and the bottom cover. First, second, and third arm portions extend from the pump assembly, wherein the first, second, and third arm portions include first, second, and third piezoelectric devices, respectively, attached thereto.

Abstract: We describe a small hanging case with a built-in air freshener, of the type that are used suspended, which comprises two halves with a sensibly rectangular configuration with rounded edges, susceptible to being coupled to each other under pressure by means of tonguing and grooving, for which purpose the male half incorporates a perimeter lip in the coupling area in the form of an O-ring, and the opposite half includes two skirts that press on this lip, providing an airtight joint between both halves. The interior of the case contains a cellulose material plate, impregnated with the aroma and possibly of a different colour associated with each fragrance, with undulated edges and a central slot in a longitudinal direction, for purposes of increasing the evaporation surface area. Each of the halves includes ventilation grilles, with those of one half in the upper position and those of the opposite half in the lower position, thereby facilitating the ascending circulation of the air.

Abstract: The present invention refers to a volatile substance diffuser based on permeable membrane with a closure where a solid wall is applied to or separated from the membrane to stop or allow evaporation, respectively. The shape of the membrane is adapted to compensate possible vacuum inside the container.

Abstract: An aromatic odor neutralizer includes a dispenser housing with an internal passage between end walls and communicating with vents in the sides for aerodynamic airflow to efficiently absorb vapors from a vaporizer chamber within the dispenser housing. The vaporization chamber contains a wick with an end part immersed in fluid in a storage cup that is gravity fed from an air tight vessel by the use of air pathways exposed when the liquid level in the cup is reduced.

Abstract: A fragrance diffuser kit is provided comprising a decanter, a fragrance refill set, a removable snuffer cap and a removable decorative vented lid. The decanter may be selected from a plurality of unique and decorative designs that are suitable for prominent display as a piece of home decor. The fragrance refill set comprises a bottle of high-quality fragrance composition for filling the decanter and a replacement wick, whereby the user may select and change the fragrance emitted by the fragrance diffuser. The decanter incorporates a wick holder having a top opening that communicates with a top opening in the decanter body so that a wick from the fragrance refill set may be inserted and held in a position to absorb and emit the fragrance composition contained in the decanter. The snuffer cap may be used to stop the emission of the fragrance composition and the vented lid may be used to hide the wick and snuffer cap, if present.

Abstract: Multiple delivery vapor dispensing mechanisms provide continuous fragrance release and supplemental on-demand fragrance releases with a portion of the on-demand fragrance releases being deposited to provide for a prolonged elevated fragrance intensity.

Abstract: An aroma porcelain wall deco comprises a container having aromatic agent retained therein, and concealed inside an accommodation groove of an ornamental shield that, to be hanged onto a wall, has an assembly hole drilled thereon to communicate with the accommodation groove, permitting the opening of the container to precisely position beneath the assembly hole. An extension portion of a microelement breathable and permeable body is guided through the assembly hole, and a suction wicking cord attached to the end section of the extension portion is soaked into the aromatic agent retained inside the container. Via each fine pore of the microelement breathable and permeable body, aromatic agent absorbed by the suction wicking cord can be efficiently released to contact with the atmosphere outside and, via natural physical changes generated thereby, fragrant scents can be evenly diffused in a long-lasting and continuous manner till the aromatic agent is used up.

Abstract: The invention relates to a device for dispensing a fluid for fragrancing, deodorising or sanitising air. The device having a body (2) comprising a shade (8), a chassis (10) having a base (6), a cartridge housing (26) mounted on the chassis (10) and adapted for housing at least one cartridge (36) containing a fluid to be dispensed, and at least one electrical light source (74). The at least one electrical light source (74) is located on the base (6) between the cartridge housing (26) and a sidewall of the body (2).

Abstract: Disclosed are a chemical carrier body capable of volatilizing a chemical stably for an extended period of time, a receptacle for retaining the chemical carrier body, an indicator adapted for displaying a degree of consumption of a chemical contained in the chemical carrier body, and a chemical heating, volatilizing apparatus adapted for heating the chemical carrier body. The chemical carrier body retaining receptacle is provided with at least one vent hole and has its inner surface spaced from the carrier body by a distance of 1 to 10 mm. The indicator has a mark gradually disappearing and a mark gradually appearing with a lapse of time of heating. The chemical heating, volatilizing apparatus has a heater element that is lager in size than the bottom surface of the chemical carrier body retaining receptacle and whose heat releasing surface is inclined at an angle of 0 to 70 degrees with respect to the plane on which the apparatus is placed.

Abstract: The scent delivery device employs a housing and scent generator which selectively releases scent. The housing is mounted on a counter and allows a user to selectively sample a variety of scent. The scent travels to the user's nose by diffusion.

Abstract: An aroma porcelain diffuser comprises a container seat equipped with a grooved hole and a ringed guide surface for the accommodation of aromatic agent therein, and a microelement breathable and permeable body having a water-permeable and air-ventilating special porcelain wicking head with fine pores densely and evenly formed thereon. The microelement breathable and permeable body also has a suction end with water-permeable and air-ventilating fine pores thereon to mount into the container seat and precisely soak into the aromatic agent retained in the container seat. Via each fine porous cell of the microelement breathable and permeable body, the aromatic agent absorbed by the suction end is transported to contact with the atmosphere outside and naturally generate physical changes thereby. Therefore, the porcelain body thereof works as a medium through which the fragrant scent of the aromatic agent is efficiently released and diffused long and wide in the surrounding environment.

Abstract: A sports team display system combined with vehicle air freshener that aids in a vehicle driver's ability to prominently display his or her support for an athletic team or organization while at the same time provides a pleasant smell to emit throughout the interior of the vehicle. The system is designed so that it will remain in a stationary position while continuing to prominently display itself while emitting the pleasant smell.

Abstract: A scent lure is configured as a reusable container with two separate compartments, one for a scent wick and one for a disposable heating element. The compartments are separated by a common dividing wall and are independently accessible for ease of use. The separate compartments allow the heating element to be removed and/or replaced without contact with the scent wick and vice versa. Preferably, the heating compartment has vents to facilitate continued activation of a heating element during use. The vents are preferably configured to provide a chimney effect that creates a heated air flow over the sent wick for enhancing the lure's effectiveness.

Abstract: The present invention is directed to a method and apparatus for treating goods, such as, for example, fumigating and re-cooling perishable goods, such as fruit, using a tarp and floor seal. The apparatus encloses goods on a surface and includes a canopy that is substantially impermeable to flowable materials, such as gas, liquid, or a combination thereof; an upper perimeter for supporting an upper portion of the canopy; a lower perimeter for supporting a lower portion of the canopy, the lower perimeter to be placed in proximity to the surface; a support structure for supporting the upper perimeter and lower perimeters; and a gasket in communication with the lower perimeter, wherein the gasket is deformable to substantially seal the chamber by compressing the gasket against the surface. The apparatus may also include an intermediate support structure for providing support to the canopy and a conduit in communication with the chamber to supply cool air to the chamber.

Abstract: Apparatus and methods for removing malodor from the air, particularly from confined spaces are disclosed. Such devices and methods are useful for example for storing and preserving food in closed compartments such as refrigerators. The apparatus and methods utilize baking soda as the odor removing substance, either alone, or in combination with another odor removing substance, which may include activated carbon. In one embodiment, the apparatus has a detachable cartridge member which contains baking soda. In one version of this embodiment, the detachable cartridge member is used with an air moving member that draws air through the detachable cartridge member. In one embodiment, the method involves using a detachable cartridge member with an air moving member in one confined space, and using another cartridge member without the air moving member in another compartment of the confined space.

Abstract: The present invention of “an air freshener and the manufacturing method thereof” relates to the product, which can improve the air quality by means of evaporating itself in the air, particularly for an air freshener, which taking tea as main ingredient. The air freshener of the present invention is made of tea, which being used as main ingredient thereof, and additive starch together with brown alga glue by means of well-mixing and stirring with water as well as drying by heat. If quantity is small, it can be heated by heater to vaporize natural fragrance for achieving the effect of refreshing the air; If quantity is plenty, it can be filled in the mattress or seat cushion to vaporize natural fragrance for achieving the effect of refreshing the air too.

Abstract: In one embodiment, the present invention is a portable air scenting device which comprises at least one material used in the manufacture of an interior part of a new transportation vehicle such as an automobile. The material has at least one scent, and the material is prepared and formed to have an enhanced surface exposure to enhance the at least one scent of the material.

Abstract: An apparatus and method are provided for introducing high-concentration, high-pressure oxygen gas with or without high-pressure ozone gas into pumped sewage mains, also known as force sewage mains, a portion of the pumped sewage is diverted from the force sewage main for addition of the high-concentration, high-pressure oxygen gas with or without high-pressure ozone gas thereto and for mixing of the gases with the sewage following by reintroduction of the gas-containing sewage into the force sewage main to accomplish the elimination of hydrogen sulfide gas odor from sewage and sewer lines.

Abstract: A vehicle efficacious constituents supply apparatus 10 includes a main unit 13 including an air gun and a subunit 15 including an air gun. A curling ring V1 of air containing aromatic constituents is projected from the main unit 13 towards an efficacious area A, while a curling ring V2 of air is projected from the subunit 15 towards the efficacious area A. A control unit for controlling projection timings of curling rings V1, V2 includes an alarming mode in which a projection interval at which curling rings v1 are projected is set shorter than a projection interval at which curling rings V2 are projected, and by executing this alarming mode, curling rings V2 can be applied to an occupant without causing the curling rings V2 so projected to disappear in the efficacious area A.

Abstract: The present invention is a system for and method of providing an autonomously mobile air purifier and surface cleaner in combination with a source of air fragrance in a single device for home or office use. The autonomously mobile air and surface cleaner and fragrancing system includes an air purifier, a fragrancer, a floor cleaner, an input means, a power system, operational and auxiliary sensors, robotics that drive and steer the device, and a central controller operatively connected to each of the aforementioned items to control the operation of the device. The present invention also provides a method for the operation of the device using the air purifier, fragrancer, floor cleaner and robotics to clean a room, and for modifying the operation of the device in response to signals sent from the sensors or from the input means.

Abstract: An air is dehumidified by a dehumidifier. Then the dehumidified air is heated, sterilized and deodorized at an air outlet.

Abstract: A fragrance disperser in one form includes a single fan that passes air over a wicked single or double fragrance. A second form has the fan reversible to provide two different airstreams that evaporate respective different fragrances one after the other. Where two fragrances are provided, the evaporation may be by respective electrical heaters. A fragrance source may be formed by two sheets joined together to form two chambers each receiving a respective wick and having respective exposed wick portions. The source may incorporate a source of electrical power. An alternative source has a reservoir for fragrance and a wick located in an air passage forming part of the source so that an air flow is guided through the passage past the wick to evaporate fragrance. Where two fragrances are provided, the fragrance sources may be located side-by-side and matching fragrances may have, for example, matching indicia on the sources so that the match can be easily determined visually.

Abstract: An air freshener package for containing an air freshener and a fragrance emitting substance. The blister type package has one compartment for the air freshener unit and another sample compartment forming a bubble or blister for a separate sample of the scent emitting material. The air freshener unit and sample compartment have a corresponding fragrance. The sample compartment forms a pressure responsive selected area on the package and is designed of a rupturable ventable material. The sample compartment can be deformed by finger pressure decreasing the volume of the compartment and thereby causing a puff of scented air to exhaust to atmosphere through a discharger opening. In an alternate embodiment, the finger pressure is sufficient to rupture a fragrance containing bead filled with fragrance air or liquid which emits a fragrance which is released through a vent or a pin hole formed in the second sample compartment to the environment.

Abstract: A device for introducing active substances, such as aromatic substances, insecticides and the like, into ambient air, comprises a holder for a carrier with a wick impressed thereon, which carrier can be placed in the holder and is replaceable. A mechanism to be operated by hand is provided for operating an ignition element, which can be placed in the holder and is replaceable, as for instance a gas lighter, to enable a wick to be ignited when a carrier with this wick has been placed in the holder.

Abstract: The present invention pertains to methods utilizing ozone treatment for abating allergens, pathogens, odors, and volatile organic compounds. The methods can be employed to abate pollutants, bacteria, viruses, mold, dander, funguses, dust mites, animal and smoke odors, and the like. The methods employ specific combinations of ozone concentration, hydrogen peroxide concentration, temperature, and humidity delivered over a specified period of time to achieve satisfactory abatement of the allergen, pathogen, odor, or volatile organic compound.

Abstract: An air refresh system (10) for use in a occupant compartment. The system (10) includes a pressurized container assembly (12) for storing a pressurized refresh fluid (14), one or more nozzles (20) for dispersing the pressurized refresh fluid (14) and one or more electronically activated valves (22) for controlling the flow of the pressurized refresh fluid (14) from the container assembly (12) to the nozzles (20). The system (10) also has a microprocessor-based controller (24) programed to: receive one ore more user input signals (28), process the one or more user input signals (28) to obtain one or more fluid control signals (34), and transmit the one or more fluid control signals (34) to the one or more electronically activated valves (22) to allow the pressurized refresh fluid (14) to flow from the container assembly (12) to the one or more nozzles (20), wherein the one or more nozzles (20) spray the pressurized refresh fluid (14) into the vehicle to refresh air in the vehicle.

Abstract: The present invention provides a fragrancer for dispersing fragrance into the air. In one aspect of the invention, the fragrancer includes a base and a modular scent holder interchangeably mounted to the base. In another aspect of the invention, the base includes a light producing element. In another aspect of the invention, the fragrancer includes a power source and a powered device and a modular scent holder and base define an interlock operable to enable power to the powered device when the modular scent holder is seated on the base and operable to interrupt power to the powered device when the modular scent holder is unseated from the base. In another aspect of the invention, the fragrancer includes a decorative element such as a globe, globe insert, or trim ring interchangeably mounted to the base.

Abstract: This invention concerns a steam generator (100) intended to humidify the air in an enclosed space or the air treated in an air conditioning system, particularly an air conditioning system aboard an aircraft, said steam generator (100) comprising at least one tank (110) intended to contain a water-based fluid (E), said or each tank (110) being connected to a heat exchanger (210) intended to convert the fluid (E) into steam. The steam generator (100) is remarkable in that the heat source connected to the heat exchanger (210) is a thermochemical reactor (230).

Abstract: An apparatus and method for sanitizing, decontaminating, deodorizing, conditioning, drying, treating, cleaning, modifying and/or otherwise improving an atmosphere within a container. The container can be a bag or other housing for equipment, food and/or suitable material. Ozone is generated within an atmosphere that is exposed to the materials. The generated ozone is mixed with the atmosphere. At least a portion of the generated ozone is then removed from the mixed atmosphere. The apparatus and method of this invention can be used to treat contaminated sports equipment and the like, as well as to treat food storage atmospheres, such as those exposed to fresh fruits and vegetables.

Abstract: When microbial contamination is introduced into a room (20*) of an enclosure, such as a building, an HVAC system including supply ductwork (16) and a return ductwork (34) is decontaminated with hydrogen peroxide vapor. A decontamination controller (46) operates controllable baffles (22) at outlet registers (20), temporary controllable baffles (44) at inlet registers (30), and a blower system (10) to circulate hydrogen peroxide vapor from hydrogen peroxide vapor generators (42) through the ductwork in both forward and reverse directions. Further, at least portions of the baffles are closed to create dwell times in which the hydrogen peroxide vapor resides in the ductwork with minimal or turbulent flow.

Abstract: An active material cartridge comprises a frame and an active material refill. The active material refill comprises at least one reservoir having an active material therein and a protrusion extending from a first end thereof. The active material refill is disposed on and attached to the frame.

Abstract: An evaporator, for use with a bottle containing a substance to be evaporated and a wick that has its lower portion disposed within the bottle and its upper portion protruding from the bottle, includes a housing in which the bottle is retained, a fan, disposed within the housing, for creating an airstream, and a louver structure, disposed downstream of the fan, for directing the airstream created by the fan upwardly and away from the upper portion of the wick. Preferably, the louver structure includes a plurality of louvers inclined at an angle between about 20 degrees to about 60 degrees relative to horizontal.

Abstract: A fragrance sampling device having an inner wall of at least one layer that defines an air cavity and is made of a material capable of retaining a fragrance carrier, and an outer wall of at least one layer made of a material that is substantially impervious to the fragrance carrier. Air containing molecules of fragrance that evaporate from at least one layer of the inner wall is released through at least one opening in the inner and outer walls to the outside of the device when pressure is applied to the device.

Abstract: An electronic candle includes a source of light which provides a spatially and temporally varying pattern of illumination which simulates a candle flame, a volatile release station which operates to release a volatile material such as an aromatic material from a cartridge, and a forced convection system which disperses the volatile material. The candle further includes a controller which coordinates the operation of the release of the volatile material and the light source so that the pattern of light produced by the source is coordinated with an attribute of the volatile material being released.

Abstract: A device for air stream, fluid and vessel decontamination generally comprises an air-inlet portion, through which air enters the device; an iodine-treatment portion; and a bubble-forming element through which iodine-laden air bubbles are released from the device into the fluid contained within the vessel. Such a device and related method substantially reduces, eliminates, or maintains microbial contamination of: air entering the device for release into the vessel; the fluid within the vessel; the interior surfaces of the vessel; and surfaces of any additional components coming into contact with the fluid or the air released from the device.

Abstract: A fan type chemical dispersion equipment, wherein a chemical container (3) and a power supply storage body (2a) are disposed detachably from an equipment body (1) and so as not to be volumetrically limited with each other, whereby, because the equipment body, chemical container, and power supply storage body can be volumetrically formed independently of each other, the settings of a chemical holding amount relative to a fan air blow amount and long or short service time can be performed easily, the chemical container being capable of preventing a chemical impregnated body from being caught between the end face of a chemical container body (3a) and a cover body (3b), and a clip device being capable of firmly fixing the fan type chemical dispersion equipment to the held materials ranging from thin to thick ones.

Abstract: A vapor-dispensing device that, through a delivery system, facilitates evaporation of multiple volatizable materials into an environment. In one embodiment, a common evaporative region is utilized; in another, a controller suitably controls an aspect or characteristic of the evaporation.

Abstract: A wick-based emanation device for dispensing a volatile liquid is disclosed. The dispensing device includes a housing and a fan mounted in the housing for generating an air stream used for dispersing the volatile liquid. Walls of the housing form an enclosure for mounting the fan and for receiving an exposed portion of the wick therein. A retention structure is provided for coupling the wick to the housing and securing the wick in the air stream generated by the fan. The volatile liquid migrates along the wick from the reservoir to the exterior of the container where it is evaporated from the surface of the wick by forced airflow generated by a motorized fan mounted in the housing. The wick is formed to have a width dimension W which does not exceed 1.2 times a dimension R of a blade of the fan extending from the fan axis of rotation to an edge of the fan blade farthest from the axis of rotation.