The invention relates to air conditioning technology and can be used for creating a comfortable indoor climate in multi-storey structure. More particular it relates to maintaining a sufficient level of air humidity in apartment buildings, office blocks and the like. The invention makes it possible to systemize and control a system for humidifying air in multi-storey structure.

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.

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, and a water supply system. The water supply system comprises a water tank, a water supply pipe arranged to convey water from the water tank, and an ultraviolet light source arranged to irradiate the water passing through the water supply pipe with ultraviolet light. The water supply pipe comprises a lateral water inlet provided adjacent to a first end of the water supply pipe and a lateral water outlet provided adjacent to a second end of the water supply pipe, and one or both of the lateral water inlet and the lateral water outlet extend tangentially from the water supply pipe.

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, and a water supply system. The water supply system comprises a water tank, a water supply pipe arranged to convey water from the water tank, a water pump arranged to pump water through the water supply pipe, and an ultraviolet light source arranged to irradiate the water passing through the water supply pipe. The water supply system further comprises a flow regulator. The flow regulator comprises a receptacle or flow regulation chamber that is arranged to receive water from the water pump and that is fluidically connected to the water supply pipe, and the receptacle comprises a crest or brim that is arranged to allow water to flow of the receptacle.

There is provided an air treatment apparatus comprising an evaporative humidifier comprising an evaporator assembly. The evaporator assembly comprises at least one evaporative element that comprises anti-bacterial fibres, wherein the anti-bacterial fibres comprise metallic silver.

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.

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 housing both the 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 has a detachable connection to the body and the body comprises a cavity within which the water tank assembly is disposed and a side opening into the cavity through which the water tank assembly can inserted into and drawn out of the cavity.

There is provided an air treatment apparatus comprising a body, an air flow generator housed within the body that is arranged to generate an air flow, an evaporator assembly removably disposed within the body and that is arranged to introduce water vapour into the air flow, and a water supply system that is arranged to provide water to the evaporator assembly. The water supply system comprises a water tank assembly that is separable from the body, the water tank assembly comprising a water tank having a tank opening. The tank opening is configured to allow the evaporator assembly to fit through the tank opening and the evaporator assembly is configured to fit within an interior volume of the water tank.

The purpose of the present invention is to provide a condensing boiler employing an eco-friendly evaporation device, in which condensed water generated in a latent heat exchanger is removed by using the evaporation device, so that the condensing boiler can be installed in a site without a processing facility for discharging condensed water and contribute to energy saving. For implementation thereof, the present invention comprises: a blower (110) for supplying a supply-air; a sensible heat exchanger (140) for absorbing combustion sensible heat generated in a combustion chamber (130) by combustion by a burner (120); a latent heat exchanger (150) for absorbing latent heat of steam included in combustion gas which has finished heat exchange in the heat sensible exchanger (140); and an evaporation device (160) which absorbs condensed water generated in the latent heat exchanger (150), and has an evaporation type humidifier (161) for evaporating and removing the absorbed condensed water by using air supplied from the blower (110).

A Heating Ventilation and Air Conditioning system is provided having airways configured to direct airflow towards a confined area, the system comprising a humidifying unit having a tray disposed in the airways and configured to hold water therein, the tray is so disposed in said airways such that the water humidifies the airflow in said airways controlling thereby the humidity level in the confined area.