Abstract: An oral treatment device includes image sensor equipment configured to generate image data indicative of a sequence of images representing at least a portion of an oral cavity of a user. The oral treatment device includes a controller configured to process the image data to determine a movement parameter indicative of movement of the oral treatment device relative to an interproximal gap between adjacent teeth in the oral cavity of the user. The controller is configured to control the oral treatment device to perform an action based on the determined movement parameter.

Abstract: A fan assembly, comprising an airflow generator arranged to generate an airflow and a nozzle comprising a nozzle body and first and second air outlets defined in a front side of the nozzle body, the first and second air outlets arranged to emit the airflow from the fan assembly in a substantially forward direction of the nozzle body. The fan assembly comprises a valve mechanism to selectively permit the airflow to pass through the first air outlet or the second air outlet, wherein the first and second air outlets have different geometries such that the first air outlet emits a first airflow delivered to a user as a focused airflow, and the second air outlet emits a second airflow delivered to a user as a diffused airflow.

Abstract: A liquid heater is described including a chamber for receiving a liquid, pairs of electrodes located within the chamber for applying electric current to the liquid, input terminals for connection to a power supply, a plurality of bridge arms connected in parallel to the input terminals, and a control unit for controlling switches of the bridge arms. The plurality of bridge arms includes a respective bridge arm for each pair of electrodes and a common bridge arm, and each bridge arm includes a pair of switches and a node located between the switches. A first electrode of each pair of electrodes is connected to the node of the respective bridge arm, and a second electrode is connected to the node of the common bridge arm. The switches have a plurality of different states for selectively connecting pairs of electrodes to the input terminals in one of a plurality of electrode configurations, the electrodes having a different total electrical resistance in each electrode configuration.

Abstract: A hair straightening apparatus having two arms pivotably coupled together wherein the arms are arranged to receive hair within a cavity formed between them is provided. At least one of the first arm and second arm includes a plenum having an air outlet for emitting air towards hair within the cavity. A hair clamp including a pair of clamping members for gripping hair therebetween, wherein each clamping member is supported by an inner wall of the first arm and second arm, respectively.

Abstract: A skincare device including a spectral sensor configured to capture a spectral image of a subject at one or more wavelengths outside of the visible spectrum; and a controller is provided. The controller is configured to analyse the spectral image to determine a measure of cosmetic residue present on the subject; and control the skincare device to perform an action associated with the determined measure of cosmetic residue. Also provided is a method and computer programme for the device.

Abstract: There is provided a fan assembly including an air flow generator that is arranged to generate an air flow through the fan assembly, and a nozzle arranged to emit the air flow from the fan assembly. The nozzle includes a nozzle body and a plurality of steerable air outlets that are each arranged to emit a portion of the air flow, wherein the plurality of steerable air outlets are arranged to be independently rotated relative to the nozzle body.

Abstract: A haircare appliance has an air inlet, an air outlet, and an airflow generator for generating an airflow from the air inlet to the air outlet. The air outlet has a first aperture at least partially defined by a first movable member, and a second aperture at least partially defined by a second movable member. Each of the first and second movable members are movable to vary a cross-sectional area of the respective first and second apertures, and movement of the first movable member causes movement of second movable member.

Abstract: A handheld appliance having a body and an attachment, the body includes an attachment mechanism having a slot and an actuator, the attachment including a protrusion adapted to engage with the slot wherein the actuator has a first position and a second position and the actuator is moved from the first position towards the second position as the protrusion engages with the slot. In the first position the actuator may at least partially obscures the slot. The actuator includes a surface which may interact with the protrusion when the protrusion engages with the slot. The surface may be adapted to at least partially define the slot at or near the second position. When the protrusion is at a pre-determined position within the slot, the actuator may return towards the first position. The actuator may be biased into the first position.

Abstract: Provided is an air treatment apparatus comprising an air flow generator arranged to generate an air flow, a moisture source arranged to introduce water vapour into the air flow, a body that in use surrounds both air flow generator and the moisture source, and a water supply system arranged to provide water to the moisture source. The water supply system comprises a water tank assembly separable from the body, the water tank assembly comprising a water tank, a water supply pipe arranged to convey water from water tank, and an ultraviolet light source arranged to irradiate the water passing through the water supply pipe. The water tank comprises a tank opening and the water tank assembly further comprises a removable tank cap that is arranged to fit over the tank opening, with the ultraviolet light source and the water supply pipe being provided on the removable tank cap.