An indoor air cleaning system is disclosed and includes a gas detection module, an air cleaning device and a central control and regulation device. The gas detection module includes a microcontroller and a central control communication interface component for detecting and outputting air pollution data. The microcontroller processes the air pollution data and outputs a regulation signal based on the calculations. The air cleaning device includes a fan, a filtering element and a driving control component. The gas detection module is disposed inside the air cleaning device. The central control and regulation device is connected with the central control communication interface component under handshake communication protocol of wired communication or wireless communication to provide an control command to the gas detection module for activation operation of the fan. Consequently, the gas state in the indoor field is cleaned completely to meet the clean room requirement.

An apparatus used with supplied power for treating air in an environment and method of use. A housing is mobile in the environment and has an intake and an exhaust. At least one prime mover is disposed in the housing and is operable to move the air in the environment through the housing from the intake to the exhaust. At least one ultraviolet light source is disposed in the housing, is in electrical communication with the supplied power, and is configured to generate ultraviolet radiation in at least one a portion of the housing through which the moved air passes from the intake to the exhaust. At least one permeable barrier is disposed in the housing and is configured to impede the moved air flow therethrough up to an impedance threshold. The permeable barrier is in electrical communication to the supplied power and is heated to a surface temperature.

Disclosed is a method and system for the mitigation of risk of exposure to contaminants and providing information thereof. The method and system thereby follow the National Institute for Occupational Safety and Health (NIOSH) Hierarchy of Controls to implement a method and system to optimize safety guidelines and increase mitigation effectiveness. The method includes providing or using an existing air moving unit, mounting sensors for the continuous measurement of contaminants, flushing the enclosed area prior to and after occupancy for a specific time, filtering, diluting the enclosed area during occupancy, pressurizing for contamination control, maintaining humidity between 40% and 60%, providing ultraviolet germicidal irradiation to destroy and deactivate nuclear material in contaminants, cleaning, adjusting operational parameters between energy conservation mode and pandemic mode, and providing a display having information thereof about the enclosed area including the attributes and characteristics continuously monitored by sensors.

Aspects of the present invention relate to an exhaust system (207) for exhausting combustion gases from an internal combustion engine (101). The exhaust system (207) includes an exhaust conduit (215) for conveying exhaust gases from the internal combustion engine (101). A particulate filter (214) is providing for filtering particulates from the exhaust gases conveyed by the exhaust conduit (207). A supply inlet (216) is arranged to introduce gas into the particulate filter (214) to promote regeneration. The supply inlet (216) is disposed upstream of the particulate filter (214) and downstream of a catalytic convertor (209). A control valve (218) is provided for controlling the supply of gas to the particulate filter (214) to control regeneration. Aspects of the present invention also relate to a vehicle (100) incorporating a controller (104); and a method of controlling operation of the control valve (218) to control regeneration of the particulate filter (214).

The present disclosure relates to a bag filter system and operation method thereof to minimize clogging due to moisture, particularly to a bag filter system to minimize clogging due to moisture which includes a pulsing unit that supplies high-pressure compressed gases into an inner filter bag when dedusting the inner filter bag; a pulsing control portion that controls injection duration and cycles of compressed gases by the pulsing unit; a temperature sensor that measures temperature inside a main body of the bag filter; and a humidity sensor that measures humidity inside the main body of the bag filter. The pulsing control portion regulates the injection duration and cycle based on temperature values and humidity values measured in the temperature sensor and the humidity sensor, respectively.

A system for protecting a workspace from airborne contaminants comprises at least one sensing capturing unit, an air transmission unit, an air capturing unit, and a processor. The processor is configured to receive a sensing data associated with the workspace from the at least one sensing capturing unit and determine presence of at least one source of transmission of the airborne contaminants. The processor is further configured to configure a capture zone within the workspace based on the determined at least one source of transmission of the airborne contaminants. The processor is configured to control the air transmission unit to direct a unidirectional flow of air over the configured capture zone, thereby directing movement of the airborne contaminants in the capture zone and further to control the air capturing unit to capture the unidirectional flow of air, along with the airborne contaminants, directed from the air transmission unit.

The present disclosure relates generally to air intake filter assemblies, and more particularly to air intake assemblies for an outdoor portion of a heating, ventilation, and/or air conditioning (HVAC) system. In an embodiment, a filter assembly is configured to filter an airflow entering an air intake of a HVAC unit. The filter assembly includes a first layer of a first coarse mesh, a second layer of a second coarse mesh, and a fine filter disposed between the first layer and the second layer. Additionally, the fine filter includes an upper level and a lower level with respect to the airflow, and wherein the lower level facilitates accumulation of fine debris captured from the airflow entering the air intake of the HVAC unit.

Methods and Systems are provided for detecting and quantifying regeneration events for diesel particulate filters in diesel engines. Parameters such as exhaust temperature, DPF differential pressure, and mass flow rates received from an engine management system are checked to determine if a regeneration is detected. If a regeneration event is detected, DPF differential pressures are logged and identified as pre-event differential pressures or post-event differential pressures. A soot burn quality value is determined using the pre-event and post-event differential pressures. The soot burn quality is used to score the soot burn and to generate alerts.

A purification device and method for treating air flow of an air handling system. A high-efficiency particulate air (HEPA) filter can be disposed across a plenum of the purification device that is configured for passage of the air flow. A heater can be disposed across the plenum and may have a permeable barrier that is configured to allow the air flow to pass therethrough. A metal material of the permeable barrier can be connected in electrical communication to a supplied power. The permeable barrier can have an active surface area configured to interact with a pathogen of the air flow and can be heated by the supplied power to a surface temperature directed to kill the pathogen.

A filter apparatus having a filter installed above a plurality of substrate treatment apparatuses arranged in a row, includes: an air inlet formed on one end portion side in a row direction of the substrate treatment apparatuses in a duct space formed above the filter; and an air volume adjustment mechanism configured to variably adjust a volume of air flowing from a first space on the air inlet side in the duct space into a second space adjacent to the first space in the row direction, the air volume adjustment mechanism being provided at a position between apparatuses in the plurality of substrate treatment apparatuses in plan view.