An evaporative cooler having a pressurized water distribution system that provides even water distribution to evaporative media pads within the evaporative cooler, even when the evaporative pads are canted and/or are not in perfect alignment. In one embodiment, the evaporative cooler includes a weatherproof sealing assembly that is transitionable between an open position and a closed position. In one embodiment, the evaporative cooler includes a reservoir having a plurality of ribs on a bottom surface to facilitate seating the evaporative cooler on a roof during installation. A method of installing an evaporative cooler including mounting at least a portion of the evaporative cooler to a dropper before securing the dropper to the roof.

With respect to atmospheric steam generating humidifiers, the present disclosure resolves the problem of end-users not adjusting the drain interval of the humidifier by using an electronic controller to automatically choose an appropriate drain interval without requiring any user input. The electronic controller accomplishes this by receiving input data from a sensor that measures a water quality parameter, automatically determining a drain interval based on the received data, and sending an output control signal to a drain water control valve to execute a drain event in accordance with the drain interval. In some examples, the electronic controller utilizes a look-up table correlating the water quality parameter to a total dissolved solids or cycles of concentration value.

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.

An ultrasonic humidifier according to an embodiment of the present invention includes: a water bottle accommodating water capable of generating humidification; a water bottle lid covering an upper opening surface of the water bottle and including a humidification outlet for discharging the humidification; and an ultrasonic humidification generating module which floats submersibly in the water accommodated in the water bottle and generates humidifying particles by using ultrasonic waves.

A liquid container for gas humidification comprises: a first component provided with a gas inlet; a second component connected with the first component and defining a liquid receiving space; a baffle member; and a gas exhaust structure including a first opening and a second opening communicated with each other; wherein the first component includes a first portion and a second portion, the first portion and the baffle member defining a first space, the second portion and the baffle member defining a second space, the first opening of the gas exhaust structure being arranged in the second space; and wherein the first portion and the second portion of the first component respectively include a first guide structure and a second guide structure, the first guide structure being configured to direct gas to the liquid receiving space, and the second guide structure being configured to direct the gas away from the liquid receiving space and into the gas exhaust structure via the first opening.

A water reservoir includes a water reservoir base configured to hold a volume of water to be used for humidification of pressurized breathable air, a water reservoir lid connected to the water reservoir base, and a compressible resilient portion configured to seal between the water reservoir base and the water reservoir lid. The base and the lid are movable relative to one another when connected whilst maintaining sealing therebetween due to the compressible resilient portion. A retainer is configured to secure the water reservoir to a water reservoir dock, and has a protrusion or recess to releasably engage one another when the water reservoir is received in the dock, with a reaction force to compression of the compressible resilient portion urging the protrusion and the recess into engagement with one another.

The air processing device is provided with a processing unit that determines the state of a predetermined part(s) in a casing on the basis of the change in a plurality of image data acquired by an imaging unit.

An air treatment device and a control method are provided. The air treatment device includes a water tank assembly, a water trough and a sterilization device. The sterilization device includes a sterilization portion, the sterilization portion is provided in the water trough, a water replenishing switch is provided between the water tank assembly and the water trough, and the water replenishing switch is configured to control connection and disconnection between the water tank assembly and the water trough. The air treatment device further includes a control portion, and the control portion is capable of controlling an opening and closing of the sterilization portion according to an on-off state of the water replenishing switch to ensure a good sterilization effect.

An ultrasonic humidifier includes a tank having a water level and a floater having a tubular structure with a bottom rim and a top rim. The tubular structure has a frusto-conical shape and is vertically and co-axially disposed within the floater. The tubular structure having a widest diameter end disposed on the bottom rim and a narrower diameter end disposed at the top rim. This humidifier also has an air-supply arrangement that eliminates water damage to the fan during spillage.

A humidification device (1) is shown wherein water is nebulized by a vibrating mesh with very small holes. The mesh is part of a reservoir which is fed by a valve arrangement which allows to direct water from a conduit over several water lines within the device either back to the conduit or into the reservoir. The device and a system with such devices allow to humidify and/or cool compartments such as rooms with a very fine mist of water which is hardly visually detectable. The system and device is adapted to be part of a permanent installation with low maintenance.