Abstract: An air cleaning filter having a carrier made of activated carbon fibers in the form of a web which supports at least one kind of chemical agent selected from the group consisting of (a) an alkali agent selected from a hydroxide or carbonate or an alkali metal, (b) an acidifying agent selected from acid aluminum phosphate or phosphoric acid, and (c) an oxidizing agent composed of two compounds, i.e. active manganese dioxide resulting from an alkali permanganate and an alkali iodate, or which supports combined chemicals of (a) the alkali agent and (c) the oxidizing agent, or combined chemicals of (b) the acidifying agent and (c) the oxidizing agent, wherein one or both surfaces of the web are covered with a nonwoven fabric to make an integrated filter.

Abstract: A miniature air purifier produces a corona discharge surrounding a needle-like emitter point connected to a negative DC power supply. The power supply operates from a nine volt battery and contains a step-up voltage inverter having a single transformer outputting high voltage spikes with a voltage multiplier operating on the output of the inverter. The production of high voltage spikes of about 200 Hz rather than a sinusoidally varying voltage significantly reduces current consumption. The needle-like emitter point is located about 1/4-inch from an 80% open mesh metallic grid held at ground potential. Corona discharge at the emitter point ionizes the air and creates ozone, and nitric oxide both of which combine with direct electron impact decomposition to detoxify and destroy a wide variety of airborne pollutants including pathogens, chemicals and allergens.

Abstract: A chemical oxygen generator with a chemical mass, which is accommodated inside a container, generates oxygen by a chemical reaction, and is held in the container by a gas-permeable fibrous material. The fibrous material is arranged around the chemical mass. The fibrous material is designed as a chemical sorption filter.

Abstract: Apparatus for safely deodorizing and purifying an enclosure such as a building structure or vehicle using an ozone generator thereby minimizing the risk of biological exposure and pollutants which trigger environmental illness or allergic reactions. The ozone generator is controlled with an electronic logic circuitry and sensors which automatically regulates ozone exposures to peak at an antiseptic level thereby preventing inadvertent oxidation damage due to over exposure. One embodiment of the apparatus uses an ozone decomposing material to eliminate the harmful residual ozone concentration within the enclosure which is present immediately after an effective ozone treatment. Another embodiment allows for control of the apparatus from outside the enclosure being purified, allowing the operator to alter the outcome of the treatment.

Abstract: A refrigerator freshening device includes an air-permeable container, enclosing a mixture, in particulate form, of a major amount of activated carbon and a minor amount of an odor-absorbing zeolite. The activated carbon is preferably characterized by a good distribution of large and small pores, at least 30 percent of the pores having a diameter of from about 15 to less than about 50 .ANG. and the zeolite by a strong organophilic character and a surface area of at least about 400 square meters per gram. The combination of particulate adsorbent materials preferably includes from about 5 to about 25 percent of the zeolite and from about 75 to about 95 percent of the activated carbon. The device preferably includes a front panel. a back panel, and a package constructed of flexible, porous material enclosing absorbent, wherein the front panel receives the back panel in nesting relationship and encloses the package of adsorbent material. Hooks are preferred to suspend the device freely within a refrigerator.

Abstract: Plant for cleaning gases (1) from an incinerator (3) of lightly radioactive aste. The plant includes a cooler-condenser (6, 100) for cooling gases (1) to a temperature lower than the dew point, a heater (300) for raising the temperature of the gases as they are discharged from the cooler-condenser (6, 100), a filter (200) for recovering solid particles downstream of the heater before the gases are discharged into the atmosphere, a unit (3) for treating condensates, and capable of precipitating radioactive heavy metals for recovery of a radioactive precipitate and an aqueous solution, an a unit (36) for crystallizing salts and concentrating them to dryness in an aqueous solution and recovering water to be recycled in the plant (2).

Abstract: A device for deodorizing and freshening a bed mattress, linens, and the air space thereabout including a pliable base, an interior pad positioned on the base and having aromatic fragrance applied thereto, and a cover mounted on the base so as to cover the pad, all forming a sleek, pliable design with minimal, if any, obstruction to a user of the mattress. The base is provided with side vents and the cover is made of a spongy, porous material so as to aid in aromatic dispersement of the fragrance applied to the interior pad.

Abstract: Described herein is an oxygen generator, comprising shell-enclosed one or more briquettes located on respective heaters and made of a substance that releases oxygen when exposed to heat.The subject matter of the invention also an oxygen-containing composition.

Abstract: A compost curing and odor control system in which biofilters are disposed in overlying relation to the compost curing area the floors of both the biofilters and curing area consist of a series of elongated planks of generally trapezoidal cross sectional configuration placed in abutting relation with the longer parallel sides of the trapezoid lying in the plane of the floor and forming between them a narrow slit through which air is passed by means of an underlying air plenum in pneumatic communication.

Abstract: A miniature air purifier produces a corona discharge surrounding a needle-like emitter point connected to a novel negative 8,000-volt DC power supply. The power supply operates from a nine volt battery and contains a step-up voltage inverter having a single transformer outputting high voltage spikes with a voltage multiplier operating on the output of the inverter. The production of high voltage spikes of about 200 Hz rather than a sinusoidally varying voltage significantly reduces current consumption. The needle-like emitter point is located about 1/4-inch from an 80% open mesh metallic grid held at ground potential. Corona discharge at the emitter point ionizes the air and creates ozone, and nitric oxide both of which combine with direct electron impact decomposition to detoxify and destroy a wide variety of airborne pollutants including pathogens, chemicals and allergens.

Abstract: A system for enhanced contaminant destruction through the use of oxidation processing. The system includes a contacting process chamber where ozone is solubilized into a solvent to create ozonated solvent and an oxidation processing chamber coupled to the contacting process chamber which selectively supplies ozonated solvent to the oxidation processing chamber. The system further includes an ozone generator coupled to the contacting process chamber and the oxidation processing chamber to selectively supply ozone to either chamber. A gas treatment system is coupled to the contacting process chamber and the oxidation processing chamber to treat gases produced in the contacting process chamber and the oxidation processing chamber for destruction or reuse, wherein the gas treatment system is selectively in fluid communication with the contacting process chamber and the oxidation processing chamber.

Abstract: An air purifier has a perforated plate between UV lamps on the one hand and a porous air filter on the other. Biological material is trapped by the filter and eventually killed by the low dose of UV radiation which passes through the perforations in the plate. Filtered air passing through the plate is subjected to a high dose of UV radiation which sterilizes remaining biological material in the air. An electrostatic filter at the outlet may trap viruses which have been positively charged either by the action of the UV lamps or by positively charging the plate in order to strip electrons from the viruses. The UV lamps may be mercury lamps which are allowed to emit at both their ozone forming wavelength as well as the ozone breakdown wavelength. In such instance, a light filter surrounds the lamps which passes light only at the ozone breakdown wavelength. Air subjected to the unfiltered light is consequently subjected to ozone, which is a known biocide.

Abstract: A device for generating oxygen by the thermal decomposition of a chemical contained in a cartridge housing, whose reaction takes place, beginning from an activation point, along a reaction front propagating in the interior of the cartridge housing in the direction of an unspent chemical, with a feed line with a restrictor, which feed line originates from the cartridge housing from the area of the unspent chemical in front of the reaction front, for drawing off the oxygen generated, shall be improved in terms of a more uniform release of the oxygen generated. To accomplish this task, a compensating line, which opens into the interior of the cartridge housing in the area of the spent chemical behind the reaction front, is connected to the cartridge housing.

Abstract: The present invention relates to iodine demand disinfectants. It relates in particular to a process for preparing a polyiodide-resin for use as an iodine demand disinfectant wherein a porous strong base anion exchange resin in a salt form, is contacted with a material capable of donating a member absorbable by the resin so as to convert the resin to the polyiodide-resin. The adsorbable member is selected from the group comprising I.sub.2 and polyiodide ion having a valence of -1. The process is characterized in that conversion of the anion exchange resin to the polyiodide-resin is effected at elevated temperature and elevated pressure, the elevated temperature being 100 degrees C. or higher, the elevated pressure being greater than atmospheric pressure. The present invention also relates to disinfectant substance comprising an iodine (impregnated) resin as produced by the above process.

Abstract: A lightweight, personal, portable dispenser of medically pure oxygen at appropriate temperature and delivery rate for direct inhalation is disclosed. The dispenser contains an oxygen producing generator to initiate the creation of oxygen instantaneously from a fuel-less self-contained chemical reaction of extended shelf-life inert compounds in a totally safe and reliable generator. The oxygen initially enters an expansion chamber. A cylindrical dispenser body houses the oxygen producing generator and forms an annular space between the cylindrical dispensing body and the oxygen producing generator. A bottom web attached to the periphery of the bottom of the cylindrical dispenser body allows air from outside of the dispenser to enter the annular space formed between the cylindrical dispensing body and the oxygen producing generator and flow out the top of the cylindrical dispenser body.

Abstract: A sculptured air freshener dispenser of the type having a sculptured shell concealing a canister of air freshener or disinfectant therein is provided. The sculptured air freshener dispenser includes: a sculptured shell defining an interior cavity, a canister of pressurized air freshener having a stem for releasing the air freshener, and a dispensing mechanism disposed within the interior cavity of the sculptured shell in functional connection with the canister.

Abstract: A mixture of an oily fragrance liquid, an oily disinfestant and an organic blowing agent is heated by the heat of the reaction between calcium oxide and water, and the fragrance liquid is atomized by the blowing gas stream and made to adhere to the interior of the conveyance.

Abstract: Apparatus and methods for use with electronic activation means such as work or entertainment systems introduce precisely controlled amounts of aromatic chemicals, using metered spray technology, into the immediate vicinity of the operator. Control is provided by microprocessor circuitry so that aromas may be used at appropriate times and intensities by computer or entertainment sources. Multiple removable spray containers may generate numerous aromatic enhancements to a wide variety of applications.

Abstract: An ozone generator is disclosed in which ozone production is controlled through corona voltage and airflow. The ozone from the generator converts perchloroethylene vapor in dry cleaning effluents into environmentally acceptable compounds. Ozone generation is controlled in response to the perchloroethylene vapor concentration in the mixture that is discharged from a mixing chamber in the apparatus. Other features include an inflatable retention chamber for allowing the ozone and perchloroethylene reaction to go to completion and improved means for cleaning the glass plates in the ozone generator by sliding the plates out of the generator structure.

Abstract: An ionizing type air cleaner having ionizing needle(s) and a collector element. The collector element is made of either many conducting elements with isolating resistors or a single high resistivity element in order to prevent electric shock when touched.

Abstract: A deodorant system includes a compact container for an odor absorbent, which may be temporarily secured to another surface such as an interior wall of a refrigerator or a garbage container, and which includes a calendar to assist in determining a replacement date for the deodorant system. A plastic housing is attached to a front face of a cardboard base plate to provide a container for the powdered odor absorbent. Several apertures are provided through a wall of the housing opposite the base plate, and an adhesive label is adhered over substantially the entire front face of the housing wall. Removal of the adhesive label exposes the odor absorbent, which consists primarily of calcium carbonate and activated carbon. Either a suction cup or an adhesive strip may be fixed to a rear face of the base plate for purposes of temporarily securing the packaging to another surface.

Abstract: A multi-function apparatus for use in a refrigerator generates a plurality of positive or negative D.C. voltages to a pointed electrode structure and a strip shaped electrode structure in order to generate corona discharge, thereby sterilizing/deodorizing air in the refrigerator's compartments, and furthermore a separate positive or negative voltage is applied to an ionizing electrode to generate positive or negative ions in the air, thus preserving the freshness of stored foodstuffs for an extended period of time.

Abstract: A refrigerator freshening device includes an air-permeable container, enclosing a mixture, in particulate form, of a major amount of activated carbon and a minor amount of an odor-absorbing zeolite. The activated carbon is preferably characterized by a good distribution of large and small pores, at least 30 percent of the pores having a diameter of from about 15 to less than about 50 .ANG. and the zeolite by a strong organophilic character and a surface area of at least about 400 square meters per gram. The combination of particulate adsorbent materials preferably includes from about 5 to about 25 percent of the zeolite and from about 75 to about 95 percent of the activated carbon. The device preferably includes a front panel, a back panel, and a package constructed of flexible, porous material enclosing absorbent, wherein the front panel receives the back panel in nesting relationship and encloses the package of adsorbent material. Hooks are preferred to suspend the device freely within a refrigerator.

Abstract: An improved food, oil and grease accumulating apparatus and method of use is disclosed. The improved apparatus includes a pump station to discharge contaminated effluent at a higher flow rate at periodic intervals into a first food separation station for removing food particles. Effluent leaves the food separation station into a second food separation system and then an oil and grease separation station which uses an oleophillic material to attract and coalesce oil and grease particles and permit their advancement along channels to the top region of the oil and grease separation station. The oil and grease are removed through an evacuation system while the water is permitted to discharge from the oil and grease separation station into the sewer system.

Abstract: A separator plate for a chemical oxygen generator candle includes an elongate rigid thermal insulating section; and at least a first conduit section on one side of the rigid section having a multiplicity of gas flow paths for conducting released oxygen from a burning candle longitudinally along the plate for increasing the burning action of the burning portion of the candle and pre-heating the unburned portion of the candle, and for retaining gas to act as a thermal insulator when the candle is not burning. A plurality of such plates are combined to form a separator assembly for surrounding a candle and a number of such separator assemblies are combined to form a multi-candle oxygen generator.

Abstract: An air flow containing microorganisms including fungal spores is sterilized by heating the air flow to a sufficient temperature to weaken cellular walls of the microorganisms, inducing turbulence in the air flow; and providing in the air flow sufficient contact surface against which the microorganisms may hit and be destroyed at a flow rate and turbulence level of the air flow.

Abstract: A high voltage electrostatic filter has alternating oppositely charged plates with an ionizing wire affixed directly to alternate plates so as to be included in a removable charged assembly unit which may also include the high voltage source and deflection of the direction of air flow by the charged plates brings airborne particulate into contact with the plates.

Abstract: A method and system for detoxify hazardous waste is described. The waste is mechanically particularized to a predetermined particle size and is then subjected to a gas flow having a temperature between 250.degree. C. and 750.degree. C. At the same time, the particularized waste is agitated to enhance its exposure to the gals flow, resulting in gasification of a substantial portion of the solid waste. The remaining particularized waste residue is collected for recycling of further disposal. After passing through the agitated particularized waste, the gas flow is circulated to a thermolytic detoxification reactor and then recirculated to the agitated particularized waste.

Abstract: A device for reducing odors in the interior of a motor vehicle comprises a hollow body of polymer material adapted to contain the extractable cigarette-lighter. The heating of the latter results in the emission of active anti-odor substances contained in the body of polymer material.

Abstract: A generator for producing a flow of excited oxygen in the singlet delta electronic state comprising a vacuum chamber, an inlet feed system, an internal reaction zone, a method for cooling said reaction zone, an outlet system for separating the gas from the liquid, and a means for interfacing this device to a lasing device for directing the flowing singlet delta gas into a laser cavity.

Abstract: A clip mount air freshener assembly has an air freshening element, and a holder providing a channel which slidably seats the air freshening element, and a spring mounting clip for mounting the air freshener assembly on the grill of a ventilator so that a stream of air issuing therefrom will flow over the exposed surface of the air freshening element. In the preferred embodiment, the holder and the clip are separate members, with each of the members providing pivot surfaces. A connector between the holder and the clip provides pivoting elements, pivotable on the pivot surfaces to provide pivotal motion of the holder in two orthogonal axes of rotation with respect to the spring mounting clip.

Abstract: A porous light-weight getter which collects particulate and molecular contaminates that is believed a significant improvement over the prior art is provided in which a metal mesh matrix is coated with a low-density porous aerogel. In the prior art bare metal mesh matrices have been employed as getters, which are subject to ablation from high-velocity contaminant particles. In the composite getter of the present invention, the low-density aerogel coating protects the enclosed metal matrix from ablation and also can attract and hold the incoming high-velocity particle. On its part, the metal mesh provides reinforcing support to the aerogel covering and also good thermal conductivity therein so that such covering can be cooled to the low temperatures that attract such contaminants. The invention further provides method for manufacture of the composite getters of the invention.

Abstract: A planter container for growing a house plant in soil or a growth medium which contains multiple vent pipes extending vertically from the bottom to the top of the container. Air convection occasioned by the natural water transpiration processes of the growing plant is sufficient to cause polluted air flow through the vent pipes, and the vent pipes then enhance air flow throughout the root growth medium, exposing the air to large surface areas of plant root and biologically active growth medium for enhanced microorganism removal of volatile organic chemicals.

Abstract: The invention relates to a chemical oxygen generator having a chemical charge arranged within a housing. This chemical charge is brought to an exothermal oxygen-releasing reaction by an ignition device with the reaction running through the chemical charge in the form of a reaction front defining a surface and starting from the ignition-end wall of the housing. The oxygen generator has at least one reaction-control member arranged within the chemical charge. In one embodiment, the reaction-control member is disposed transversely to the direction of movement of the reaction front and overlaps a part of the surface of the reaction front. In another embodiment, the reaction-control member extends parallelly to the direction of movement of the reaction front. The oxygen generator of the invention is improved in that the oxygen flow and the duration of supply can be influenced beyond that obtained with a purely geometric extension of the reaction path.

Abstract: An aerosol sampler comprises at least one U-tube whose ends are fixed to a support, and through which the aerosol is caused to flow. Means are provided to set the tube vibrating, and to measure its resonant frequency. The bend of the U-tube acts as an impactor so aerosol particles larger than a cut-off size are trapped, causing a change in the measured frequency. A sampler may include a number of such U-tubes in series, with steadily decreasing cut-off sizes, so the aerosol particulate size distribution can be determined.

Abstract: An in-line air purifier (110) for removing contaminants from a compressed air line includes an enclosure (112) having a carrying handle (124), a side wall (116) hinged (118) to a base (114), clasps (120, 122) for releasably closing the side wall (116) onto the base (114), and air inlet (126) and outlet (154, 156) couplers carried on the base (114) for coupling the purifier (110) in a compressed air line. A two stage assembly including replaceable cartridges (40, 42, 90) for removing oil and water, a bed (60) of activated charcoal, and a catalytic bed (76) for carbon monoxide is provided within the base (114) and connected between the inlet (126) and outlet (154, 156) couplers for removing contaminants in compressed air passing therethrough. An air monitor (162) is also provided within the base (114) and connected (157, 158, 160) to the outlet coupler (154, 156) for continuously sampling air passing through the outlet coupler (154, 156).

Abstract: The invention relates to a chemical oxygen generator having a chemical charge arranged within a housing. This chemical charge is brought to an exothermal oxygen-releasing reaction by an ignition device with the reaction running through the chemical charge in the form of a reaction front defining a surface and starting from the ignition-end wall of the housing. The oxygen generator has at least one reaction-control member arranged within the chemical charge. A generator of this kind is improved in that the oxygen flow and the supply duration can be influenced by the material and/or the shape of the reaction-control member. The improvement is achieved in that one or more reaction-control members made of sheet metal are arranged parallel to the direction of movement of the reaction front. As an alternative, the reaction-control member can be configured in the form of a spiral conveyor which is made of sheet metal or a thermally-insulating material.

Abstract: An apparatus for dispensing odorant vapor into an air stream is disclosed. The apparatus contains a reservoir for containing a volatilizable liquid, a dispensing well, liquid moving means for withdrawing liquid from the reservoir and causing it to flow into the dispensing well, and switch means for activating the liquid moving means.

Abstract: Rotatable circular plates are stacked apart to form thin air layers therebetween. Rotation of the circular plates moves air over an air treatment material: catalyst or adsorbent. In one embodiment, the air treatment material is affixed to the surface of the circular plates. In another embodiment, the circular plates are formed from the air treatment material. The increased velocity of air relative to the circular plates causes separation of laminar flow, promotes boundary-layer turbulence near the plate surfaces, and promotes propagating stall in the air layers. These phenomena enhance the contact between the flowing air and the air treatment material.

Abstract: In a preferred embodiment, a gas generator system for providing underwater buoyancy, including: a housing for the placement therein of a solid chemical to produce a gas upon reaction of the chemical with water; an inlet in the housing to bring the water in contact with the chemical; a float attached to an upper portion of the housing to receive the gas and thereby to become inflated so as to effect the buoyancy; a pressure plate to continually bear against the upper surface of the chemical as the chemical is consumed by the reaction, the pressure plate having defined therethrough a plurality of apertures, the total area of the apertures being selected so as to control the rate of reaction of the chemical and being spaced so as to permit even distribution of water to the surface of the chemical; and a biaser to cause the pressure plate to continually bear against the upper surface of the chemical as the chemical is consumed.

Abstract: An indoor air purifier has a base and a container on the base with a layer of soil supported above a lower water bath occupying the bottom of the container. The container is fitted on top of the base such that the container can freely rotate upon the base. Room air is drawn into the base and is passed from the base into the bottom of the container through a duct connected between the two. Air passing from the base is directed downwardly into the water bath before passing upwardly into the soil layer. The air passes through the soil layer and is discharged from the soil's surface back into the room. Contaminant gases and particulates are removed from the air through contact with the soil layer and are metabolized by microorganisms contained within the soil, producing carbon dioxide and water. The water bath humidifies the air being passed through it and maintains a stable degree of moisture in the lower portion of the soil layer.

Abstract: Malodorous liquid animal manures are deodorized by treating the sample with an effective deodorizing amount of at least one polyoxyalkylene ester of undecylenic acid having from 2 to 10 oxyalkylene recurring units.

Abstract: A dust collector includes a front case and a rear case. A discharging electrode plate and an electrical charge plate are arranged zig-zag along guide elements formed in the front case, the guide elements extending in a front-to-rear direction. A dust collecting part is installed under the discharging electrode plate and the electrical charge electrode plate. An active carbon filter is installed in the rear case in order to deodorize the air.

Abstract: An ozone filter for decomposing ozone in the air is disclosed. The ozone filter is composed of a carrier formed by paper made of inorganic fibers having a porosity of 70 to 95%. The carrier is impregnated with a solution of fine powder-like activated manganese dioxide dispersed in water and having a particle size of 0.3 to 50 .mu.m and a specific surface area of not less than 100 m.sup.2 /g in an amount of not less than 40 g/m.sup.2, on a dry white base of activated manganese dioxide, which is allowed to adhere to the carrier, and is then dried. The ozone filter thus produced is more active and has a longer life with a reduced pressure loss than conventional ozone filters.

Abstract: An air treatment apparatus includes a chamber designed to provide infrared radiation at a predetermined wavelength. Atmospheric air is passed through the chamber such that carbon dioxide molecules in the chamber achieve a higher energy state. Atmospheric air containing the higher energy state carbon dioxide molecules is discharged from the apparatus into the atmosphere. The atmospheric air containing higher energy or activated carbon dioxide may be used in a given space to overcome lethargic conditions produced by prior art air treatment devices such as air conditioners. The atmospheric air may be filtered prior to entering and after discharging from the treatment chamber for further air treatment. Heat may also be provided in the chamber to oxidize impurities in the air for further purification and air treatment. A method is provided whereby atmospheric air passes through the infrared radiating chamber to activate carbon dioxide molecules therein.

Abstract: A waste collection container fitted with an inlet point and an outlet point is used for receiving contaminated carrier air from a medical suction procedure. Heavier solids and liquids are collected within the waste collection container by gravitational precipitation. The carrier air now containing only aerosol contaminants is then bubbled through a disinfecting bath to sterilize the carrier air before it is exhausted into the immediate indoor environment or the outdoor atmosphere. An activated charcoal filter is then used to remove odors from the sterilized carrier air. An input and exit port of the waste collection container are initially sealed and are punctured by manually operated actuator apparatus to permit carrier air to flow through the container and the disinfecting bath. When the waste collection container is full, before removal another actuator is manually operated to discharge the disinfecting bath into the precipitated fluids and solids in the container to thereby sterilize them.

Abstract: A component for deodorizing air or gas having a coexist compound as a deodorizing element, said coexist compound comprising a metal and a reaction product of the metal and an acid, wherein the metal is selected from at least one of Fe, Mn, Cr, Ni, Zn, Al and Cu, and the acid is selected from at least one of ascorbic acid, gluconic acid, citric acid, tartaric acid, tannic acid, gallic acid, EDTA and malic acid, wherein clean air or gas is passed through the deodorizing element to restore its deodorizing effect after a period of time sufficient for the deodorizing element to lose its deodorizing power.

Abstract: Apparatus for purifying indoor air comprises a blower for circulating air through a duct and removing particles and neutralizing a number of harmful gases through a process of molecular catalytic cracking of heavy hydrocarbons at ambient temperatures. Preferably, the apparatus includes a series of treatment elements including an ozone generator for producing a oxidator gas, a bio-mass collector, a filter coated with zeolite and surface modified hopcalite for removal of CO and NO.sub.x compounds, a filter coated with calcium carbonate for removing carbon dioxide and hydrohalic compounds, a filter coated with zeolite for solvents such as MEK and adsorbing water, and one or more filters for removing particulates in the air stream. The filters thus remove particulates and neutralize a number of harmful gases that may be present in indoor air.

Abstract: A lamp structure includes a base, with the base including an apertured periphery in communication with a support conduit chimney, with the support conduit chimney directed into a plant container, with the plant container further including a plurality of pneumatic feed conduits in pneumatic communication with the conduit chimney, and each feed conduit includes a matrix of apertures directed coextensively therethrough to direct air through a quantity of plant soil containing the pneumatic feed conduits for purification of the air as the air is by convection directed through the soil by an overlying lamp positioned within a reflective housing, with the reflective housing including a chimney coaxially aligned relative to the underlying plant container.

Abstract: A moisture indicator for indicating the state of moisture loading of an oxygen-releasing chemical in a respiratory protection device which contains the peroxide of an alkali metal as the substance is to be improved such that it will indicate an irreversible and clearly recognizable color change and will respond to the intrusion of even small amounts of moisture. To accomplish this task, the substance contains as the reactive substance an additive in the form of an alkali metal ozonide that engages in a color reaction with moisture present in the air.