An environmental control system for a building, the system including a vent. The vent includes one or more louvers configured to change position between an open position and a closed position to permit air from the air duct to enter a zone of the building or stop the air from entering the zone and a vent circuit configured to operate the one or more louvers based on one or more control commands. The system includes a controller device including a processing circuit configured to receive a selection of an operating profile from a plurality of predefined operating profiles for the vent, each of the plurality of predefined operating profiles indicating an intended use of the zone, determine, based on the operating profile, the one or more control commands, and cause the vent circuit to operate the one or more louvers based on the one or more control commands.

An indoor unit for an air conditioner including: a cabinet assembly forming an external appearance of the indoor unit and having a suction port formed in a rear surface of the cabinet; a filter module movably disposed in rear of the cabinet assembly; a filter module mounted to the filter mounting member and filtering foreign substances in air flowing into the suction port; a mobile member connected to the filter mounting member and moving a position of the filter mounting member; a driving device pressing the mobile member to change the position of the filter mounting member; and a controller configured to, in response to receiving a control command to change the position of the filter mounting member, operate the driving device that presses the mobile member.

A filter support for mounting an air cleaning device includes an access panel, at least one support member extending from the access panel, and a latch mounted to the access panel. The latch is operable to selectively couple to the air cleaning device.

A process for predicting and adjusting particle removal efficiency of fiber-based filter media based on quantification of disorder. An order parameter may be extracted through Raman spectroscopy or scanning electron microscopy. Production processes may be adjusted to change (e.g., increase) the particle removal efficiency of fiber-based filter media utilizing a predefined correlation between order parameter and particle removal efficiency. The filter media may be utilized in masks, filters, and other applications.

A semiconductor fabrication building is provided. The semiconductor fabrication building includes an ambient control surrounding and a makeup air handling unit configured to supply clean air to the ambient control surrounding. The makeup air handling unit includes a housing having an air inlet and an air outlet. The makeup air handling unit also includes a first filtration module positioned in the housing. The first filtration module includes a number of hollow fibers configured to guide air to flow from the air inlet to the air outlet. A porous layer is formed at an inner wall of each of the hollow fibers to filter airborne molecular contamination (AMC) having a selected size.

The present disclosure provides a filter for removing contaminants from a liquid or gaseous medium including a woven or nonwoven sheet of entangled carbon nanotubes. The present disclosure also provides a method for reducing the concentration of contaminants in a liquid or gaseous medium by contacting the liquid or gaseous medium with the filter.

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.

A buried type air purifier including a main body to be buried in a buried space through a buried opening provided on a boundary surface between a use space and the buried space, the main body having an intake passage and a discharge passage which take in and discharge air, respectively; a fan to guide air of the use space along the intake passage and the discharge passage; and a filter to filter the air. The main body includes: a first main body part having a fan accommodating part to accommodate the fan; and a second main body part having a cross sectional area, which is parallel with the boundary surface, being smaller than the first main body part, where the second main body part is formed to pass the intake and discharge passages through which the air guided via the fan accommodated in the fan accommodating part passes.

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.

A filter assembly is provided. The filter assembly includes a plurality of filter modules each filled with activated carbon and continuously connected; and a frame to which the plurality of filter modules are fixed, wherein the plurality of filter modules are disposed at predetermined angles relative to each other.