A laundry appliance includes a rotating drum for processing laundry. A blower directs process air through an airflow path that includes the rotating drum. A heat exchanger is positioned within the airflow path that dehumidifies the process air. A fixedly-secured lint filter captures lint from the process air at a position upstream of the heat exchanger. A fluid spray system has spray nozzles that deliver fluid to a surface of the fixedly-secured lint filter. Each spray nozzle of the plurality of spray nozzles directs captured lint away from the fixedly-secured lint filter.

A dryer appliance includes a drum defining a chamber for receipt of clothes for drying, an air handler for urging a flow of air through the chamber, and a trap duct in fluid communication with the chamber and comprising a lint filter for filtering lint from the flow of air exiting the chamber. A lint detection assembly includes an emitter for generating light and a receiver for detecting the light that is transmitted through the lint filter, and a controller is configured to determine a lint level based at least in part on the light detected by the receiver, determine that the lint level exceeds a predetermined lint threshold, and implementing a responsive action, such as stopping the cycle, notifying the user, and/or updating an initial cycle time.

A washing machine appliance includes a cabinet, a wash tub positioned within the cabinet, at least one pump in fluid communication with the wash tub, and a dual drain path connected to the at least one pump. The dual drain path may include a first drain path from the at least one pump, an unfiltered second drain path from the at least one pump in fluid parallel to the first drain path, and a water filter located along the first drain path. Some washing machine appliances may further include a controller configured to initiate a drain cycle.

A clothes treatment apparatus comprises: a cabinet forming a treatment space for storing clothes; a filter module having a filter portion for filtering out dust from air passing therethrough; an air flow path having a plurality of preset flow paths for directing air to be discharged into the treatment space; a fan for moving the air in the air flow path; at least one valve disposed on the air flow path; a valve actuating module for actuating the valve; and a control part for controlling the valve actuating module so as to select one of the plurality of flow paths. The plurality of flow paths comprise: at least one bypass flow path for directing the air to bypass the filter portion; and at least one filtering flow path for directing the air to pass through the filter portion.

A clothes treatment apparatus comprises: a cabinet forming a treatment space for storing clothes; a filter module having a filter portion for filtering out dust from air; an air flow path having a plurality of preset flow paths for directing air to be discharged into the treatment space; a fan for moving the air in the air flow path; a single valve disposed on the air flow path, that changes the air flow path by rotating around a predetermined rotational axis; a valve actuating module for rotating the valve; and a control part for controlling the angle of rotation of the valve to select one of the plurality of flow paths. The plurality of flow paths comprise: at least one bypass flow path for directing the air to bypass the filter portion; and at least one filtering flow path for directing the air to pass through the filter portion.

A laundry appliance uses a determination of volumetric airflow rate after a steady state condition is reached to determine the accumulation of lint in filter. Based on the determination, various actions can be taken including notifying the user, shutting off the appliance, initiating an automatic cleaning sequence for one or more lint filters, and combinations thereof. One or more temperature sensors, relative humidity sensors, and weight sensors are used to provide measurements for determining the volumetric airflow rate.

A storage container (100) comprising a housing (110) containing a storage chamber (112) isolated from an outside environment (10). The housing (110) defines a housing inlet (130) and a housing outlet (140). The storage container (100) is configured to clean air in the outside environment (10). The storage container (100) comprises a first filtration assembly (360) coupled to the housing (110) about the housing outlet (140). The first filtration assembly (360) has a first filtration inlet (364) configured to receive air from the storage chamber, a first filtration outlet (366) configured to release air into the outside environment (10), and first filter media (368) between the first filtration inlet (364) and the first filtration outlet (366).

A method of operating a laundry treatment includes receiving an input for a selected washing operation for a laundry load; determining a filtration requirement of the laundry load of the selected washing operation; implementing a responsive action in response to determining the filtration requirement of the laundry load, the responsive action including an activation state of a selector input on a user interface; and performing the selected washing operation according to a determined set of operating parameters.

A laundry appliance includes a rotating drum for processing laundry. A blower directs process air through an airflow path that includes the rotating drum. A heat exchanger is positioned within the airflow path that dehumidifies the process air. A fixedly-secured lint filter captures lint from the process air at a position upstream of the heat exchanger. A fluid spray system has spray nozzles that deliver fluid to a surface of the fixedly-secured lint filter. Each spray nozzle of the plurality of spray nozzles directs captured lint away from the fixedly-secured lint filter.

A laundry appliance includes a rotating drum for processing laundry. A blower directs process air through an airflow path that includes the rotating drum. A heat exchanger is positioned within the airflow path that dehumidifies the process air. A fixedly-secured lint filter captures lint from the process air at a position upstream of the heat exchanger. A fluid spray system has spray nozzles that deliver fluid to a surface of the fixedly-secured lint filter. Each spray nozzle of the plurality of spray nozzles directs captured lint away from the fixedly-secured lint filter.