Abstract: An in-bra wearable breast pump is provided. The breast pump includes an air pump system for generating a base level vacuum and a pumping vacuum, a breast shield for receiving a user's breast and having a first side and a second side, a first channel for drawing the base level vacuum on the first side of the breast shield, and a second channel for drawing the pumping vacuum on the second side of the breast shield.

Abstract: There is provided a method of measuring liquid volume in a sealed container of a breast pump of known volume comprising liquid and gas. The method includes a measurement phase, measuring the volume of gas in the container by changing a first parameter of the gas by a known amount. The method also includes measuring a change in a second parameter of the gas; calculating the volume of gas in the container using the measured change and a predetermined operation equation; and determining the volume of liquid in the container based on the calculation.

Abstract: Provided is an air treatment apparatus comprising an air flow generator arranged to generate an air flow, a moisture source arranged to introduce water vapour into the air flow, a body that in use surrounds both air flow generator and the moisture source, and a water supply system arranged to provide water to the moisture source. The water supply system comprises a water tank assembly separable from the body, the water tank assembly comprising a water tank, a water supply pipe arranged to convey water from water tank, and an ultraviolet light source arranged to irradiate the water passing through the water supply pipe. The water tank comprises a tank opening and the water tank assembly further comprises a removable tank cap that is arranged to fit over the tank opening, with the ultraviolet light source and the water supply pipe being provided on the removable tank cap.

Abstract: There is provided a filter assembly arranged to be mounted over the air inlet of a fan assembly, the filter assembly comprising a filter frame arranged to support one or more filter media. The filter frame is provided with a first engagement member on a first edge of the filter frame and a second engagement member on a second edge of the filter frame, the first edge being opposite to the second edge. The first engagement member and the second engagement member are each configured to be engaged by a respective retention assembly when mounted on the fan assembly.

Abstract: There is provided an air treatment apparatus comprising an air flow generator that is arranged to generate an airflow, a moisture source that is arranged to introduce water vapour into the air flow, a body that in use surrounds both the air flow generator and the moisture source, a water supply system that is arranged to provide water to the moisture source, the water supply system comprising a water tank assembly that is separable from the body, an interface sealing element that is arranged to form a seal between the water tank assembly and the body that prevents leakage of air into the body, an air supply feed that is arranged to convey air from within the body of the air treatment apparatus into the water tank assembly, and one or more air filter assemblies that are located upstream of both the moisture source and the air supply feed.

Abstract: There is provided an air treatment apparatus comprising an air flow generator that is arranged to generate an air flow through the air treatment apparatus, a moisture source that is arranged to introduce water vapour into the air flow, a body that is use surrounds both air flow generator and the moisture source, and a water supply system that is arranged to provide water to the moisture source. The water supply system comprises a water tank assembly that is separable from the body, and the water tank assembly comprises a water tank and a water pump for pumping water from the water tank to the moisture source. The water tank comprises a tank opening and the water tank assembly further comprises a removable tank cap that is arranged to fit over and thereby occlude the tank opening, and wherein the water pump is provided on the removable tank cap.

Abstract: There is provided a fan assembly comprising a fan body comprising a first air inlet and a second air inlet, the first air inlet and the second air inlet being provided on opposing halves of the fan body. The fan assembly also comprises a first filter assembly mounted on the fan body over the first air inlet, and a second filter assembly mounted on the fan body over the second air inlet. The fan body further comprises a first retention assembly that is configured to releasably engage both the first filter frame and the second filter frame, and a second retention assembly that is also configured to releasably engage both the first filter frame and the second filter frame.

Abstract: There is provided a fan assembly comprising a fan body comprising a first air inlet and a second air inlet, the first air inlet and the second air inlet being provided on opposing halves of the fan body. The fan assembly also comprises a first filter assembly mounted on the fan body over the first air inlet, and a second filter assembly mounted on the fan body over the second air inlet. The fan body further comprises a first retention assembly that is configured to releasably engage both the first filter frame and the second filter frame, and a second retention assembly that is also configured to releasably engage both the first filter frame and the second filter frame.

Abstract: There is provided a filter assembly arranged to be mounted over the air inlet of a fan assembly, the filter assembly comprising a filter frame arranged to support one or more filter media. The filter frame is provided with a first engagement member on a first edge of the filter frame and a second engagement member on a second edge of the filter frame, the first edge being opposite to the second edge. The first engagement member and the second engagement member are each configured to be engaged by a respective retention assembly when mounted on the fan assembly.