The present invention provides an apparatus for diffusing a chemical substance comprising: a chamber having a diffusing member arranged to diffuse a chemical substance to air disposed within the chamber, wherein the chamber is in communication with an air-inlet arranged to receive air from an exterior of the chamber and an air-outlet arranged to expel air from within the chamber.

A gas-fueled portable device for the thermal dispensing of volatile materials such as insect repellents is described. The device employs a pressure regulator to establish gas flow, heat generation, and dispensing temperature at pre-determined optimal values. The automatic operation at pre-determined settings provides simple on/off operation for the user of the device.

A refill kit for a device to dispense an air treatment chemical includes a substrate supported on a frame. The substrate is in the form of a puck, and includes sand, a binder, and an air treatment chemical. A candle is also provided, which is suitable to heat the substrate.

An insect repellent adaptor is configured for use with an insect repellent device and includes an insect repellent bottle; a wick having a first end extending into an interior of the insect repellent bottle and a second end extending outwardly from the insect repellent bottle; a base having a wick heater extending outwardly thereof, and a bottle top having a bottle holder configured to attach the insect repellent bottle thereto; and a heating element. The wick heater is configured for insertion into the insect repellent device adjacent a heating plate thereof. The base includes a cylindrical chimney centrally formed in and extending through the base, wherein the chimney is configured to conduct heated, evaporated, volatilized material from the insect repellent bottle, via the wick, out of the base, and into the surrounding air. The heating element is cylindrical and has a diameter larger than a diameter of the chimney, is coaxially formed therewith, and is formed from a thermally conductive material.

Disclosed herein is a device and a method to disperse at least one air treatment substance, a kit containing the device, and use of the device to repel and/or kill a pest in an indoor or outdoor area.

The invention relates to a device for evaporating volatile substances, comprising a heat source (5) evaporating volatile substances from a refill (2), a heat detector (4) which can detect the heat from said heat source (5), and indicating means (7) connected to said heat detector (4) emitting an indication when the heat detector (4) detects the heat from said heat source (5), and characterized in that said heat detector (4) is placed above said heat source (5). The invention allows the indicating means to be activated virtually in a simultaneous manner with the placement of the heat emitter.

A fragrance delivery device, system, and method of use and manufacturing are disclosed. The device has a vapor releasing membrane including a plurality of micropores, wherein each respective micropore has a consistent diameter dimension in both a delivery condition and in a use-condition of the fragrance delivery device. The device further includes a flexible impermeable barrier coupled to the vapor releasing membrane along a perimeter thereof, wherein the vapor releasing membrane and impermeable barrier define a cavity there between having a predetermined volume. A substance is disposed in the cavity up to the predetermined volume, the substance comprising a volatile fragrance disposed in a matrix, wherein the substance has a first viscosity in the delivery condition and a second viscosity in the use-condition, the volatile fragrance being releasable from the matrix when exposed to a predetermined temperature and emittable through the plurality of micropores.

Devices for dispensing an air treatment chemical such as insect repellent are disclosed. There is a chimney housing having a side wall defining an internal cavity. There is also a caddy assembly supported by the housing and having an upper caddy frame configured to mount a substrate bearing an air treatment chemical adjacent an upper portion of the housing, and a candle holder coupled to the upper caddy frame and configured to support a candle having a wick adjacent a lower portion of the housing. There is also a substrate bearing air treatment chemical suitable to be supported by the upper caddy frame, and a candle suitable to be supported by the candle holder. A refill kit for such devices is also disclosed. Also disclosed is an embodiment with a sand core bearing the repellent, a heat deflector positioned under the sand core, and a candle positioned under the heat deflector.

A refill kit for a device to dispense an air treatment chemical includes a substrate supported on a frame. The substrate is in the form of a puck, and includes sand, a binder, and an air treatment chemical. A candle is also provided, which is suitable to heat the substrate.

The invention provides a hydrocarbon-fueled device for heating and dispensing a volatile substance, such as an insect repellent. The device provides a long-lasting 48-hour fuel system, multiple fuel canisters that can be exchanged without interrupting the operation of the device, an illuminated indicator that provides a visible indication of the operating state of the device from any viewing angle, and a flame-extinguishing safety lid. During the warm-up phase, the indicator indicates this state by pulsing. Once the device reaches operating temperature, the indicator emits a steady light, indicating proper operation. In the event that the device cools below the operating temperature, the light will pulse, alerting the user to check the flame and/or fuel supply. The user can initiate complete, properly-controlled operation of all functions of the device via the operation of a single on-off switch.