Abstract: An autonomous surface cleaning apparatus includes a body including a chassis and an outer shell mounted to the chassis, a drive system carried by the body, a cleaning assembly projecting forward beyond a front surface of the outer shell, the cleaning assembly having a generally planar front surface, and a forward bumper mounted to the front surface of the cleaning assembly. The apparatus further includes a plurality of forwardmost contact sensors disposed behind the forward bumper and arranged to detect displacement of the forward bumper relative to the cleaning assembly, a first plurality of shell contact sensors each being arranged to detect longitudinal displacement of the outer shell relative, and a second plurality of shell contact sensors each being arranged to detect lateral displacement of the outer shell relative to both the chassis and the cleaning assembly.

Abstract: There is provided a mobile robot including a chassis, a drive system, and a collision detection system. The collision detection system includes first and second parts of the mobile robot, the first and second body parts being disconnected and moveable relative to the chassis in response to a collision with an object, and first and second sensors configured to sense relative movement between the chassis and the first and second body parts respectively and, in a collision event, to send a control signal causing the drive system to take corrective action. The mass of the second body part is substantially lower than the mass of the first body part.

Abstract: A wearable air purification system including a wearable support configured to be supported on or around a head region of a user; and an air delivery mask connected to the wearable support which is shaped to bound an air delivery region and to deliver a flow of air to the air delivery region. The air delivery mask includes an illumination source including one or more light emitting elements located along a longitudinal edge of the air delivery mask. The system or ‘air purifier’ is configured to direct light to the area occupied by the user's mouth when the air purifier is worn, as well as in some examples providing illumination to a mask or visor of the product itself. Examples herein are more visually appealing but the form of illumination means that the user's face is more visible to others which therefore reduces facial features being obscured.

Abstract: A wearable air purification system including a wearable support configured to be supported on a head of a user, and an air delivery mask which is shaped to bound, at least partially, an air delivery region and to deliver a flow of air to the air delivery region. The wearable support includes a left side support and a right side support which support the air delivery mask therebetween; and a left side motor and a right side motor configured to drive a respective left or right side air flow towards or away from the air delivery region, each of the left and right side motors being mounted within a respective left or right side motor housing on a respective one of the left and right side supports so that, when the wearable support is supported on the head in use, the motors sit rearward of or above the user's ears.

Abstract: A wearable air purification system including a wearable support configured to be supported on or around a head region of a user, and an air delivery mask connected to the wearable support which is shaped to bound an air delivery region and to deliver a flow of air to the air delivery region. The air delivery mask includes an illumination source configured to illuminate the air delivery region, wherein the illumination source is directional and is oriented to target the air delivery region. The system or ‘air purifier’ is configured to direct light to the area occupied by the user's mouth when the air purifier is worn, as well as in some examples providing illumination to a mask or visor of the product itself. Examples herein are more visually appealing but the form of illumination means that the user's face is more visible to others which reduces facial features being obscured.

Abstract: A wearable air purification system including a wearable support for on or around a head region of a user; and an air delivery mask connected to the wearable support which is shaped to bound an air delivery region and to deliver a flow of air to the air delivery region. The air delivery mask includes an illumination source located along a longitudinal edge of the air delivery mask, and a control system that is configured to control the illumination source to convey information to a user in response to data received by the control system. The system is configured to direct light to the area occupied by the user's mouth when the air purifier is worn. The form of illumination means that the user's face is more visible to others which reduces facial features being obscured. The control system enables the product to be interactive for the user, delivering status information, and other data to enhance the user experience.

Abstract: A wearable air purification system or air purifier including a wearable support configured to be supported on a head region of a user and having a first end connected to a first audio earpiece and a second end connected to a second audio earpiece; an air delivery mask in the form of an elongated bar that includes first and second ends connected to the wearable support and which is shaped to bound an air delivery region and to deliver a flow of air to the air delivery region. The wearable support and the air delivery mask include a respective flexible region which allows both the wearable support and the air delivery mask to fold into a compact configuration.