A floor cleaner including a recovery tank. The recovery tank includes a tank body having a lower end wall, an open upper end, and a sidewall that extend upwardly from the lower end wall. A cover that includes a suction air outlet in fluid communication with a vacuum source. An inlet duct extends upwardly from the lower end wall. The recover tank includes a shutoff float including a float body and a closure. The float body is configured to float on a surface of cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet. The float body moves along the inlet duct as the float body floats on the surface of the cleaning fluid. The float body includes an aperture extending through the float body and the inlet duct extends through the aperture of the float body.

A nozzle for a cleaner includes a nozzle body having a suction passage in which air flows. A water tank is detachably mounted on the nozzle body, and a rotation cleaning part is rotatably supported at a lower side of the nozzle body to receive water from the water tank for cleaning a floor. The water tank includes an outlet through which water is discharged, a valve configured to open and close the outlet, and an air hole configured to introduce outside air into the water tank. An air hole operation part is movably installed on the water tank to open and close the air hole.

A nozzle for a cleaner includes a nozzle body having a suction passage in which air flows. A water tank is detachably mounted on the nozzle body, and a rotation cleaning part is rotatably supported at a lower side of the nozzle body to receive water from the water tank for cleaning a floor. The water tank includes an outlet through which water is discharged, a valve configured to open and close the outlet, and an air hole configured to introduce outside air into the water tank. An air hole operation part is movably installed on the water tank to open and close the air hole.

A device for extracting drilling sludge for use at difficult to access locations on a building site includes a main body. The main body has a cavity on a lower side of the main body and a drilling sludge that is disposed in the cavity during a use of the device is extractable from the cavity by a suction device. The main body also has an extraction opening which opens into the cavity.

A cleaner apparatus including a filler configured to reduce static electricity is provided. The cleaner apparatus includes a main body, a dust container detachably coupled to the main body, an extension tube having an end detachably coupled to the main body, and a suction head detachably coupled to another end of the extension tube, wherein the dust container includes a first filler having a charge mobility of 16,000 to 200,000 cm.sup.2/Vs and an aspect ratio of 1:1,500 to 1:8,500.

A cleaner apparatus including a filler configured to reduce static electricity is provided. The cleaner apparatus includes a main body, a dust container detachably coupled to the main body, an extension tube having an end detachably coupled to the main body, and a suction head detachably coupled to another end of the extension tube, wherein the dust container includes a first filler having a charge mobility of 16,000 to 200,000 cm.sup.2/Vs and an aspect ratio of 1:1,500 to 1:8,500.

A vacuuming faucet assembly includes a faucet that is integrated into a counter top. A pair of vacuum units is each integrated into the faucet and each of the vacuum units includes a suction port that is in fluid communication with a vacuum source. The suction port on each of the vacuum units is extendable away from a respective vacuum unit for suctionally removing water from the counter top to dry the counter top. A plurality of motion sensors is each integrated into a respective one of the faucet and a respective one of the pair of vacuum units to sense motion proximate the respective faucet and the respective pair of vacuum units. Additionally, respective ones of the motion sensors turns on the respective faucet of the respective vacuum unit when the respective motion sensor senses motion.

A vacuuming faucet assembly includes a faucet that is integrated into a counter top. A pair of vacuum units is each integrated into the faucet and each of the vacuum units includes a suction port that is in fluid communication with a vacuum source. The suction port on each of the vacuum units is extendable away from a respective vacuum unit for suctionally removing water from the counter top to dry the counter top. A plurality of motion sensors is each integrated into a respective one of the faucet and a respective one of the pair of vacuum units to sense motion proximate the respective faucet and the respective pair of vacuum units. Additionally, respective ones of the motion sensors turns on the respective faucet of the respective vacuum unit when the respective motion sensor senses motion.

A nozzle for a cleaner includes a nozzle housing having a suction flow path through which air containing dust flows, a first rotation cleaning unit and a second rotation cleaning unit located on a bottom side of the nozzle housing, the first rotation cleaning unit and the second rotation cleaning unit being spaced apart from each other in a left-right direction of the nozzle housing, each of the first rotation cleaning unit and the second rotation cleaning unit having a rotation plate, a driving device located in the nozzle housing, and a water tank located on the nozzle housing, the water tank being configured to store water to be supplied to the first rotation cleaning unit and the second rotation cleaning unit. The water tank includes a first chamber, and a second chamber spaced apart from the first chamber in the left-right direction of the nozzle housing.

A nozzle for a cleaner includes a nozzle housing having a suction flow path through which air containing dust flows, a first rotation cleaning unit and a second rotation cleaning unit located on a bottom side of the nozzle housing, the first rotation cleaning unit and the second rotation cleaning unit being spaced apart from each other in a left-right direction of the nozzle housing, each of the first rotation cleaning unit and the second rotation cleaning unit having a rotation plate, a driving device located in the nozzle housing, and a water tank located on the nozzle housing, the water tank being configured to store water to be supplied to the first rotation cleaning unit and the second rotation cleaning unit. The water tank includes a first chamber, and a second chamber spaced apart from the first chamber in the left-right direction of the nozzle housing.