A laundry treatment appliance includes a cabinet, a door to selectively open and close the cabinet, a tub mounted within the cabinet, a drum rotatably mounted within the tub, an air circulation duct provided in the cabinet and having a first end connected to an air outlet of the tub and a second end connected to an air inlet of the tub, and a filter provided within the air circulation duct. The filter defines a cool air end having a perimeter thereof attached to an interior wall of the circulation duct and a warm air end having a perimeter thereof spaced apart from the interior wall of the circulation duct, and the second end is positioned below the first end in a vertical direction.

A portable air purifier includes an air purification module and a housing. The housing is connected to the air purification module. The housing has a first air supply port and a nozzle portion. The nozzle portion has a second air supply port. When in use, the air purified by the air purification module is guided out from the first air supply port or/and the second air supply port, so that a user can choose different air supply modes as desired.

An air cleaner according to an embodiment of the present disclosure includes: a main body including a main fan configured to generate air flow, a discharge part through which air passing through the main fan is discharged, a wireless power transmitter disposed on one side, and a power supply connected to the wireless power transmitter; and a flow switching device movably provided on the one side of the main body, wherein the flow switching device includes: a first guide tool configured to guide a first direction rotation of the flow switching device; a second guide tool configured to guide a second direction rotation of the flow switching device; and a wireless power receiver configured to supply power to the first guide tool and the second guide tool.

A filtered air supply assembly includes a filtration unit that can be worn on a user's clothing. The filtration unit including a plurality of filters each is integrated therein and each of the filters is filter air that is pumped by the filtration unit. A mask is provided that can be worn on the user's face. A mask air hose is fluidly coupled to the mask and the mask air hose receives air from the filtration unit thereby facilitating the user to breathe the filtered air when the mask is worn. A nose air hose can be fluidly coupled to the filtration unit thereby facilitating the user to breathe the filtered air when the nose air hose is positioned in the user's nose.

An air cleaner is provided. The air cleaner includes a main body, a case coupled to an outer side of the main body and comprising a suction port for sucking air into the main body, a filter unit disposed inside the main body, a dust sensor for sensing dust concentration, a first flow path provided so that air sucked through the suction port is flown to the side of the dust sensor, and a second flow path provided so that air filtered through the filter unit is flown to the side of the dust sensor, and the dust sensor may sense first dust concentration of air provided through the first flow path and sense second dust concentration of air provided through the second flow path.

A device is for compressing waste. The device includes: a waste bag suspension member formed with an upper portion around which an opening of a flexible waste bag may be spanned; a lid movable between an open position, wherein waste may be added to a waste bag through the upper portion of the waste bag suspension member, and a closed position, wherein the lid covers the upper portion of the waste bag suspension member so that an at least partially closed volume may be formed between the lid and the waste bag; and a suction member adapted to evacuate air from the at least partially closed volume. The lid is perforated so that the suction device may evacuate the air through the perforation(s) in the lid. There is also disclosed a system for compressing waste as well as a method for operating the system.

An air management system for a common indoor room or space that comprises a plurality of air outflow apertures or vents, a plurality of air curtains having at least a portion of the air curtains separated from one another, a plurality of separated air suction intakes, and an air sterilization and/or air cleaning mechanism.

An air purification unit and/or system for an environment with multiple seated individuals, including an air collector and air purification chamber, to be used independently from or in conjunction with the environment's air handling system.

In certain exemplary embodiments, an air purifier comprises a housing defining an enclosure and having an air entrance and an air exit; a particulate filter; a NCCO filter material configured to adsorb and decompose at least one gaseous pollutant; an AOG configured to generate at least one oxidant; an oxidant remover configured to remove at least one oxidant; a fan unit configured to generate airflow from the air entrance to the air exit; wherein the particulate filter, the NCCO filter material, the AOG, the oxidant remover and the fan unit are positioned within the enclosure such that during operation, a flow of air passes from the air entrance to the air exit through the particulate filter and the NCCO filter material along a direction of the flow of air. In certain embodiments, the air purifier may ensure safety to users while efficiency in removing contaminants can be greatly improved.

The present invention provides an air purifier that purifies, disinfect and decontaminate convention air flow by using UV rays. Because the UV rays emitted by the UV light sources are contained within the air purifier, use of the air purifier is safe in that a nearby person can avoid exposure to hazardous UV radiation. Adjustment of operating conditions, such as the UV intensity and wavelength and air speed, is programmable via a remote controller, a smart switch, a smart device, a wireless communication device, a smart home control appliance, a sensing device, and/or a built-in module, which renders the air purifier a smart appliance that may automatically and optimally suits to a user's need based on the user's habit and other physical parameters. Installation and removal of the air purifier, as well as cleaning and replacement of any part thereof, are simple and convenient, as a result of the clever design.