An air-conditioning system is provided that may include a first air-processing apparatus, which includes a first outlet formed to be open toward a floor and a first inlet formed to be open in a direction inclined relative to a direction in which the first outlet is open and is configured to deliver heat-exchanged air to the first outlet, and a second air-processing apparatus, which includes a second outlet formed to be open in a direction parallel to the first outlet and a second inlet formed to be open in a direction parallel to the first inlet and is configured to deliver purified air to the second outlet. The first outlet and the second outlet extend in a lateral direction, and the first air-processing apparatus and the second air-processing apparatus are arranged in the lateral direction.

An air-conditioning system is provided that may include a first air-processing apparatus, which includes a first inlet formed in a first surface thereof that extends perpendicular to a floor or a ceiling and a first outlet formed in a second surface thereof perpendicular to the first inlet and induces air introduced into the first inlet to exchange heat with refrigerant and to be discharged through the first outlet, and a second air-processing apparatus, which includes a second outlet formed therein so as to be open in a same direction as the first outlet and a second inlet formed therein so as to be open in a same direction as the first inlet. The air-conditioning system may be driven in a combined operation mode in which the first and second air-processing apparatuses operate simultaneously or an independent operation mode in which one of the first air-processing apparatus or the second air-processing apparatus operates.

An air pollution prevention device applied for a baby carriage includes a sealing cover, a filtration cleaner, a gas detection module and an intelligent control and process device. The sealing cover is hooded on the baby carriage for forming a sealed space. The filtration cleaner penetrates the sealing cover form the outside of the baby carriage for introducing an outside air into the sealed space of the baby carriage and discharging an air pollution source out of the sealed space. The gas detection module detects the air pollution source and outputs gas detection data. The intelligent control and process device receives and compares the gas detection data and controls an enablement of a gas guider of the filtration cleaner for filtering and exchanging the air pollution source in the sealed space so as to generate a clean air.

A hydro-enhanced air cleaner is provided as a stand-alone unit or as a component of a heating, ventilation, air conditioning system for a building which cleans and purifies ambient air and is also capable of producing potable water in humid environments. The device includes a dehumidifier which extracts polluted humid air and produces condensate including water and pollutants which adhere to the water. A degasser is connected with the dehumidifier to purify and degas the condensate to produce deionized water and pollutants. A humidifier is connected with the degasser to vaporize at least a portion of the deionized water for delivery to a living space. Excess deionized water may be collected as a potable water supply. In accordance with a method, the apparatus is used to continuously recycle air within a building further continuously clean the air.

An exhaust and filtration assembly includes: a housing; an exhaust vent configured to guide unfiltered air out of the exhaust and filtration assembly; a filter assembly configured to filter air and guide the filtered air out of the exhaust and filtration assembly; an exhaust assembly configured to direct raw air from an entry port of the exhaust and filtration assembly and direct air out of the exhaust vent without the air having been filtered; and a controller comprising computing logic configured to control so that only one of air filtration and raw air exhaust occurs at any given time.

An exhaust and filtration assembly includes: a housing; an exhaust vent configured to guide unfiltered air out of the exhaust and filtration assembly; a filter assembly configured to filter air and guide the filtered air out of the exhaust and filtration assembly; an exhaust assembly configured to direct raw air from an entry port of the exhaust and filtration assembly and direct air out of the exhaust vent without the air having been filtered; and a controller comprising computing logic configured to control so that only one of air filtration and raw air exhaust occurs at any given time.

An indoor pollution prevention system includes a plurality of gas detection modules, one or more intelligent control-driving processing devices, one or more gas-exchange processing devices, one or more intake passages, and one or more discharge passages. The intake passage is connected to the gas-exchange processing device and has an intake opening for guiding the outdoor gas into an indoor space. The discharge passage is connected to the gas-exchange processing device and has a discharge opening for discharging the air pollution source to the outdoor space. The intelligent control-driving processing device controls the gas-exchange processing device to be enabled under a surveillance condition of the gas detection module, so that the air pollution source passes through the discharge passage, filtered and purified by a cleaning and filtration assembly, and is discharged to the outdoor space, thereby allowing the indoor space to have a clean air.

The present invention provides an air filtering system for use in a building and an HVAC system, wherein the air filtering system includes: an outside-air inlet; a first filtering stage at the downstream of the outside-air inlet; a second filtering stage at the downstream of the first filtering stage; a collection module for collecting outside-air quality information; and a control module in communication with the collection module, wherein the control module adjusts an operation state of the first filtering stage and/or the second filtering stage based on the air quality information collected by the collection module. The system of the present invention has the advantages of energy saving, low maintenance cost, etc.

A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.

A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.