An artificial intelligence (AI) device includes a display, a communication unit configured to transmit indoor air quality information received from an air quality measurement device and meta information input through the display to an AI server, and a processor configured to receive an air quality analysis report generated based on outdoor air quality information, the indoor air quality information and the meta information from the AI server through the communication unit and display the received air quality analysis report on the display. The air quality analysis report includes a first analysis report including a result of analyzing an indoor air quality condition during a measurement period of the air quality measurement device, and a second analysis report including an air quality type according to the indoor air quality condition and a solution for fine dust management according to the air quality type.

Methods and systems for maintaining an atmosphere inside a habitat enclosing a work station and shutting down one, more than one, or all operational equipment inside and/or outside the habitat upon the occurrence of an adverse event. Concentrations of explosive, flammable, and/or poisonous gases or vapors are sensed, transmitted to a logic device, as are temperature, pressure, and/or humidity. HVAC units and air extraction units controlled by the logic device maintain acceptable pressure, temperature, and/or humidity. Any grit and dust may be extracted. Any explosive, flammable, and/or poisonous gases or vapors are extracted employing an emergency gas extraction sub-system controlled by the logic device. The logic device shuts down one, more than one, or all operational equipment inside and/or outside the habitat (for example as dictated by the client, law, or regulation) upon receiving one or more adverse event signals.

An airflow sterilizing unit configured to airflow in a heating, ventilation, and air conditioning (HVAC) system is disclosed. The airflow sterilizing unit includes a portion of a duct at least partially lined with an ultraviolet (UV) reflective material, a plurality of hollow structures positioned within the portion of the duct, each comprising an external UV reflective surface, and at least one array of UV light emitting diodes (LEDs) mounted on a surface of at least one of the plurality of hollow structures. The sterilizing unit is configured to replace a section of an existing duct in the HVAC system such that air within the HVAC system passes through the sterilizing unit before exiting from one or more vent.

One or more embodiments of a device or structure for medical testing. The structure may include a shell defining an interior of the structure, at least one workstation in the interior of the structure, at least one window in the shell, each of the at least one workstation including one of the at least one window communicating between the respective workstation and an exterior of the structure, and an air control system configured to filter air and control air pressure in the interior of the structure.

An airflow sterilizing unit configured to airflow in a heating, ventilation, and air conditioning (HVAC) system is disclosed. The airflow sterilizing unit includes a portion of a duct at least partially lined with an ultraviolet (UV) reflective material, a plurality of hollow structures positioned within the portion of the duct, each comprising an external UV reflective surface, and at least one array of UV light emitting diodes (LEDs) mounted on a surface of at least one of the plurality of hollow structures. The sterilizing unit is configured to replace a section of an existing duct in the HVAC system such that air within the HVAC system passes through the sterilizing unit before exiting from one or more vent.

A computer implemented method and system for an automated customer service platform with human augmented conversational interleaving is disclosed. The method comprises estimating a latent load of the air in a zone being disinfected; selecting a set of one or more control from a plurality of control that is expected to improve the optimization metric; optimizing a metric for the set of allowable control; and changing the setpoints of the set of control when the optimized metric has converged.

A computer implemented method and system for an automated customer service platform with human augmented conversational interleaving is disclosed. The method comprises estimating a latent load of the air in a zone being disinfected; selecting a set of one or more control from a plurality of control that is expected to improve the optimization metric; optimizing a metric for the set of allowable control and changing the setpoints of the set of control when the optimized metric has converged.

The invention concerns an electrostatic precipitator comprising an ionisation stage, a collector stage and a power supply. The power supply comprises a first high-voltage power supply unit for applying a first DC high voltage to the ionization stage and a second high-voltage power supply unit for applying a second DC high voltage to the collector stage. The first high-voltage power supply unit is configured to operate the ionization stage current-controlled. A current sensor required for this is advantageously arranged in the return line carrying low voltage, for which purpose the first high-voltage power supply unit and the second high-voltage power supply unit are galvanically isolated from the mains connection and from each other.

Methods and systems for maintaining an atmosphere inside a habitat enclosing a work station and shutting down one, more than one, or all operational equipment inside and/or outside the habitat upon the occurrence of an adverse event. Concentrations of explosive, flammable, and/or poisonous gases or vapors are sensed, transmitted to a logic device, as are temperature, pressure, and/or humidity. HVAC units and air extraction units controlled by the logic device maintain acceptable pressure, temperature, and/or humidity. Any grit and dust may be extracted. Any explosive, flammable, and/or poisonous gases or vapors are extracted employing an emergency gas extraction sub-system controlled by the logic device. The logic device shuts down one, more than one, or all operational equipment inside and/or outside the habitat (for example as dictated by the client, law, or regulation) upon receiving one or more adverse event signals.

An indoor air quality monitoring system (20) is adapted to function within a space (26) utilizing a building subsystem (22), such as a heating ventilation air conditioning (HVAC) unit, configured to control an ambient parameter, such as temperature, humidity or lightning, in the space (26). The system (20) includes an agent detector (30) configured to detect an agent in ambient air, such as smoke, biohazards or particulate matter, and sequentially output an initial agent measurement signal and a subsequent agent measurement signal. A controller (34) of the system (20) includes a processor and a storage media. The controller (34) is pre-programmed with an agent threshold value, and configured to receive the initial agent measurement signal, compare the signal to the agent threshold value, and if the signal exceeds the agent threshold value, then send a command signal (42) to the subsystem (22) to alter the ambient parameter associated with the agent detector, and then receive the subsequent agent measurement signal from the agent detector associated with the altered ambient parameter.