A cleaner head for a cleaning appliance including an agitator rotatable about an axis; a housing having a front side, a rear side, and first and second sides which extend between the front and rear sides, said housing defining a chamber which at least partially surrounds the agitator, the chamber having a dirty air inlet and a dirty air outlet; and a spray nozzle device for spraying cleaning fluid onto the agitator in a direction towards the rear side of the housing, said spray nozzle device being fluidly connectable to a cleaning fluid supply tank of a cleaning apparatus.

A suction hose for a vacuum cleaner including a hose portion, which has a flexible dust removal hose body and a flexible jacket hose body, in which the dust removal hose body is arranged, wherein a suction flow channel for conducting a suction flow to the vacuum cleaner extends between longitudinal ends of the hose portion, which suction flow channel is bounded by a hose jacket of the dust removal hose body, a connection piece for connecting to the hand-held power tool or to the vacuum cleaner is arranged at at least one longitudinal end of the hose portion, and the jacket hose body and the dust removal hose body extend into an interior of a hose receptacle of the connection piece such that the dust removal hose body is sheathed by the jacket hose body into the hose receptacle.

A mobile cleaning robot can include a body, a drive wheel, and a wheel stop. The drive wheel can be connected to the body and can be operable to move the mobile cleaning robot about an environment. The wheel stop can be movable with respect to the body and the drive wheel between a stop position and a release position. The wheel stop can be engageable with the drive wheel in the stop position to limit vertical travel of the drive wheel with respect to the body.

A surface cleaning apparatus is disclosed having a forward portion and a rearward portion. The forward portion has a dirty air inlet, a front side, a rear side and a forward bridging section, the forward bridging section having a rearwardly extending air flow passage that is downstream from the dirty air inlet. The rearward portion positioned rearward of the forward portion, the rearward portion comprising a front side, a rearward side, a rearward bridging section, a lower planar surface, an upper surface and an up flow duct, the rearward bridging section being spaced rearward of the front side of the rearward portion. The rear side of the forward portion is spaced from and faces the front side of the rearward portion and the forward bridging section is connected to the rearward bridging section.

A portable debris removal system cleans debris and fluids from newly machined parts generally includes an enclosure assembly where a user cleans a machined part with a compressed air gun. The air within the enclosure assembly is evacuated for decontamination through a series of filters with remaining contaminates collected in a waste vessel. Ambient air and air gun expressed compressed air are drawn into the system via the Venturi effect created by a Venturi vent positioned on the bottom of the enclosure assembly.

A vacuum clear and an electric motor module (100) therefor are provided. The electric motor module (100) includes an outer casing (1) provided with an air inlet (10) at a front side thereof and an air outlet (11) at a rear side thereof; an electric motor assembly (2) arranged in the outer casing (1), and cooperating with the outer casing (1) to define an air passage in communication with the air inlet (10) and the air outlet (11); and a silencer (3) arranged at the air inlet (10), defining at least one resonant cavity therein, and the at least one resonant cavity having a side wall provided with a throat in communication with the resonant cavity.

A cleaning tool for an extraction cleaner includes a tool body including a nozzle portion connected to an elongated handle portion and a nozzle cover removably mounted to the nozzle portion forming a suction nozzle therebetween. The suction nozzle is configured to extract recovered liquid and dirt. The cleaning tool also includes an internal conduit in fluid communication with the suction nozzle configured to transport recovered liquid and dirt extracted by the suction nozzle. The internal conduit extending longitudinally within the handle portion between opposite ends of the handle portion. The cleaning tool further includes a spray nozzle configured to distribute cleaning liquid forward of the nozzle cover and a supply tube configured to carry cleaning liquid to the spray nozzle. The spray nozzle passes through the suction nozzle or the inlet conduit.

An example method to remove build material from a container is described. In that example a pulsed gas flow may be induced in a conduit to aspirate build material in pulses from the container.

A cordless wet and dry stick vacuum cleaner system has a portable power module, which includes an airflow generator, a battery, and control circuitry. This may be used with either a wet dirt management system and a wet vacuum nozzle or it may be used with a dry dirt management system and a dry vacuum nozzle. The shared power module enables power savings, whereas the other parts remain optimized for their specific function.

The invention pertains to a system consisting of a first floor treatment apparatus that is exclusively guided manually within an environment by a user and a second floor treatment apparatus that is exclusively operated automatically, wherein the second floor treatment apparatus is designed for orienting and localizing itself within an environment. The first floor treatment apparatus is designed for detecting a movement path of the first floor treatment apparatus during a movement of the first floor treatment apparatus that is manually guided by a user, as well as for transmitting information on the detected movement path to the second floor treatment apparatus by means of wireless communication. The second floor treatment apparatus is designed for receiving the information and for autonomously traveling along the movement path within the environment based on the received information.