Provided is a humidifier comprising a housing including a suction port and a discharge port; a water container having an opening/closing valve; a water tank unit provided with a water tank, a humidifying member, a blower unit for providing air-blowing force, a water feed adjusting member installed on the water tank unit, a water feed operating member for moving the water feed adjusting member, and a controller for controlling an operation of the water feed operating member. The water feed adjusting member includes a space forming member having an opening, the opening guiding the water discharged from an outlet of the opening/closing valve to the water tank unit, and the space forming member includes a confinement space that may confine the water discharged from the outlet when the housing is inclined at a certain angle or greater.

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, and one or more indoor cleaning and filtration devices. The gas-exchange processing device includes one or more flow-guiding component and a cleaning and filtration assembly. The intelligent control-driving processing device controls the operation of the indoor cleaning and filtration device in real-time under a surveillance condition, therefore the air pollution source in the indoor space passes through the indoor cleaning and filtration device, allowing the air pollution source in the indoor space to be filtered and exchanged to become a clean air.

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, and one or more indoor cleaning and filtration devices. The gas-exchange processing device includes one or more flow-guiding component and a cleaning and filtration assembly. The intelligent control-driving processing device controls the operation of the indoor cleaning and filtration device in real-time under a surveillance condition, therefore the air pollution source in the indoor space passes through the indoor cleaning and filtration device, allowing the air pollution source in the indoor space to be filtered and exchanged to become a clean air.

An air purifying prompting system includes an air purifying system and a prompting server wirelessly communicated with the air purifying system. The air purifying system includes an air purifying processor, an air filter communicating with the air purifying processor, a positioning module for positioning the air purifying system, and an air quality sensor for detecting air quality around the air purifying system, wherein the prompting server is arranged to generate an air filter usage time data. The air filter usage time is used to activate generation of air filter prompting signals to the air purifying system.

An air purifying prompting system includes an air purifying system and a prompting server wirelessly communicated with the air purifying system. The air purifying system includes an air purifying processor, an air filter communicating with the air purifying processor, a positioning module for positioning the air purifying system, and an air quality sensor for detecting air quality around the air purifying system, wherein the prompting server is arranged to generate an air filter usage time data. The air filter usage time is used to activate generation of air filter prompting signals to the air purifying system.

A filter element sensor module having a housing, a sidewall of the housing including a recessed portion. The sensor module including a sensor assembly being provided within the housing about a sensor port interface being provided at one end of the housing. The sensor module also including processing circuitry being configured to receive signals from the sensor assembly and communication module, the communication module being configured to transmit one or more sensed parameters from the sensor assembly.

The present disclosure describes a computer-implemented method that includes: monitoring an air pressure gap between two positions inside a pipe of an air filtration system; generating a first cleaning pulse inside the pipe to cause a drop of the air pressure gap being monitored; comparing a characteristic of the drop of the air pressure gap with a known profile; and based on results of the comparing, determining a status of at least one filter or filter cleaning component of the air filtration system.

The present disclosure describes a computer-implemented method that includes: monitoring an air pressure gap between two positions inside a pipe of an air filtration system; generating a first cleaning pulse inside the pipe to cause a drop of the air pressure gap being monitored; comparing a characteristic of the drop of the air pressure gap with a known profile; and based on results of the comparing, determining a status of at least one filter or filter cleaning component of the air filtration system.

Provided is a filter cleaning device capable of cleaning a filter while suppressing the shortening of the life of the filter.

The present technology provides a filter cleaning device that determines a contaminated region from a plurality of regions of a filter that captures particles or molecules, and supplies energy for reducing a contamination level to some of the plurality of regions determined as the contaminated region. According to the present technology, it is possible to provide a filter cleaning device capable of cleaning a filter while suppressing the shortening of the life of the filter.

An apparatus and method for inactivation of airborne pathogens to include a reactor space with an intake opening, an exhaust opening, and an airflow path disposed between the intake and exhaust openings for air to continuously transit throughout the reactor space. The apparatus also includes at least one of (i) a corona discharge unit with a pressure swing adsorption unit, or (ii) a UV-C germicidal lamp to generate a sufficient concentration of ozone and UV light to inactive pathogens. The apparatus also includes a catalyst disposed within the path of the airflow to convert ozone to oxygen following the inactivation step and an adsorbent to remove nitrogen oxides from the air. The apparatus also includes sensors for measuring ozone and nitrogen oxides concentrations at the exhaust opening.