Disclosed are implementations for minimizing substrate contamination during pressure changes in substrate processing systems. Over a duration of a pressure change (increase or decrease) in a chamber of a substrate processing system, a flow rate is adjusted multiple times to reduce occurrence of contaminant particles in an environment of the chamber. In some instances, the flow rate is changed continuously using at least one dynamic valve that enable continuous control over the pressure dynamics of the chamber.

One aspect is directed to a system for controlling airflow in a facility having a ceiling-ducted aisle airflow containment system having a first damper system for controlling airflow. The system includes an input to receive parameters related to airflow in the facility, wherein the parameters include at least one airflow resistance value for a device in the facility, an output to provide output data including at least one setting for one or more controllable devices in the facility, and one or more processors configured to receive the parameters related to airflow, determine airflow values associated with the airflow containment system and based on the airflow values, generate the at least one setting for the one or more controllable devices, including at least one setting for the first damper system.

An alarm system includes a monitoring component configured to detect a danger in a dwelling, and an alert component that includes an array of vibration devices placed throughout the dwelling. Each of the array of vibration devices are configured to provide a tactile alert in response to a detection of the danger in the dwelling. In another aspect, an alarm system includes a monitoring component configured to detect a ventilation-related danger in a building, and a mitigation component configured to open at least one of a door or a window in the building automatically in response to a detection of the ventilation-related danger. In a further aspect, a method includes monitoring a building for a ventilation-related danger, and opening at least one of a door or a window in the building automatically in response to a detection of the ventilation-related danger.

A building system can connect to temporary air quality sensors installed throughout spaces of the building for a period of time. The building system can receive air quality measurements of the temporary air quality sensors over the period of time and disconnect from the temporary air quality sensors at an end of the period of time, wherein the temporary air quality sensors are uninstalled at the end of the period of time. The building system can generate a control strategy based on the air quality measurements, the control strategy for controlling equipment of the building to improve air quality of the building and cause a building management system to implement the control strategy to control the equipment of the building to improve the air quality of the building.

A ventilation system is provided, the ventilation system comprising at least one air flow generating device, the at least one air flow generating device having a calibrated speed to produce a downward air flow capable of forcing a cloud of infectious bacterial, viral or pathogen particles or droplets out of an ingestion zone of a mouth, a nose and eyes of an individual, at least one ultraviolet C light lamp positioned proximate at least one wall of an area in a pathway of an infected air flow, the infected air flow containing the cloud of infectious bacterial, viral or pathogen particles or droplets, an ultraviolet C radiation field created by the at least one ultraviolet C light lamp, the ultraviolet C radiation field extending throughout the area from the at least one wall near a ceiling of the area and the infected air flow containing the cloud of infectious bacterial, viral or pathogen particles or droplets passing through the ultraviolet C radiation field, wherein the at least one air flow generating device is positioned to enable an upward air flow return to the at least one air flow generating device to force the infected air flow and the cloud of infectious bacterial, viral or pathogen particles or droplets out of an area and through the ultraviolet C radiation field to eradicate the infectious bacteria, virus and pathogens from the infected air flow, and wherein a fresh air flow free of infectious bacteria, viruses and pathogens is reintroduced back into the area by the downward air flow of the at least one air flow generating device.

A shed forming device for a weaving machine, comprising a working space (3) in which shed forming systems having selection means for the positioning of warp threads are provided, and ventilation means (7) to create an air flow (A) in this working space (3), wherein the ventilation means (7) interact with regulating means (8, 9, 10) for automatically regulating the air flow rate as a function of at least one of the following measured parameters: the flow rate and the velocity of the air flow (A) and the air pressure in the working space (3). As a result, the air flow rate can be rapidly adapted to changing conditions and can always be appropriate for efficient cooling and for creation of an overpressure.

The present invention relates to a method for controlling a thermoregulated ventilation circuit (100) equipped with a control unit (40) and comprising an active humidifier (10). The active humidifier (10) further comprises, in turn, a cartridge (20) equipped with a humidification chamber (21) adapted to contain water to be heated for the humidification of the air through a heating element (30), and the thermoregulated circuit (100) further comprising at least one intake tube (120) for conveying the air exiting said cartridge and provided with heating means (123) for heating the air exiting said cartridge (20). The method according to the present invention is characterised in that said control unit (40) receives in input the patient's temperature data (Tp) detected by a patient's temperature probe (132) and regulates the operation of said heating element (30) of said cartridge (20) and the operation of said heating means (123) of the air exiting said cartridge (20) as a function of said patient's temperature (Tp).

An integrated method for assessing metabolic rate and maintaining indoor air quality and efficient ventilation energy use. A physical sensor assesses room occupancy. An actuated ventilation system is set to a constant CO.sub.2 level in a predetermined healthy range, where the actuated ventilation system includes a CO.sub.2 sensor. The actuated ventilation system sets a first air ventilation rate and the sensor measures a first CO.sub.2 level. The system determines whether CO.sub.2 level is in a healthy range, if not then the CO.sub.2 level is adjusted by setting a subsequent air ventilation rate. A subsequent CO.sub.2 level is measured. If the CO.sub.2 level is determined to meet a predetermined healthy range, then an assessment of change of air ventilation rate (Δ ACH) is determined. The determination of air change rate can be further augmented by a physical pressure based measurement. The overall metabolic rate is generated.

A multi-functional storage system includes a storage compartment, a circulation flow path positioned at the rear of the storage compartment, and including an inlet end and an outlet end each communicating with the storage compartment, through which circulating air flows, and a flow path inlet for introducing the circulating air into the circulation flow path, the flow path inlet being positioned between the storage compartment and the circulation flow path and in communication with the inlet end of the circulation flow path.

An air-conditioning system includes an air-conditioning unit for supplying conditioned aft to an activity space defined by a compartment and having an air-conditioning duct for guiding the conditioned aft to the activity space, and at least one auxiliary air duct mechanism including an auxiliary air duct communicatingly connected to the air-conditioning duct for communicating the activity space with the outside, and a fan mounted in the auxiliary air duct. The auxiliary air duct has an auxiliary air inlet for guiding therein the outside air, an inner air inlet opening for guiding therein the conditioned air, and an auxiliary air outlet for discharging the outside air and the conditioned air into the activity space.