Systems and methods for customizing a removable filter in an air purifier. The removable filter may comprise multiple filter types, and the combination and characteristics of the filter types can be varied based on air-quality requirements. In some instances, the composition of a new filter can be determined based on data obtained from analysis of used filters. Additionally, filters can be personalized based on an individual user's health data, geographic location, and regional and local air-quality characteristics.

Systems and Apparatus for a personal ventilation system that provides a personalized column of clean air surrounding a user's space is presented. The personal ventilation system includes an air purifier with a fan and an annular gap downstream of the fan. The annular gap has an inner radius that is within 95% of the outer radius. The annular gap structure allows the air purifier to produce a column of air with an entrainment ratio lower than other commercially available fan. At a distance of 1.5 meters, the air purifier is configured to have an entrainment ratio of lower than 40%. The air purifier also has a removable filter located upstream of the fan. The ventilation system is capable of delivering highly-localized filtered air to a user or location.

The systems and methods described herein are directed to an air purification system that can purify air that is passed through the air purification system. The air purification system can include one or more sensors that can detect various characteristics associated with the air that passes through the air purification system. Some implementations of the air purification system can include wireless communication capabilities that allow at least the sending of warnings to remote locations, such as a user's mobile device. In addition, the user can remotely monitor sensed data collected by the air purification system, such as via an app downloaded onto the user's mobile device. In addition, one or more settings of the air purification system can be directly or remotely adjusted (e.g., via the user's mobile device).

A method and system is provided for reducing produced water disposal volumes utilizing waste heat generated by thermal oxidation. Waste heat generated by thermal oxidation can be used to vapourize excess water, and to treat and scrub the water vapour for final release into the atmosphere. The system can utilize excess heat remaining after thermal oxidation to produce water vapour.

A heating, ventilation, and air conditioning (HVAC) control system generates a request to replace a first air filter installed in an air handler of an HVAC system with a second air filter. The second air filter has a particulate matter removal efficiency rating that is greater than a particulate matter removal efficiency rating of the first filter. The system delays for a predetermined period of time and then obtains (i) a first temperature of air downstream of the air handler and (ii) a second temperature of air upstream of the air handler. The system then calculates a temperature difference between the f temperatures and determines whether the temperature difference is within an acceptable range. In response to the temperature difference being within the acceptable range, the system (i) operates the HVAC system using the second air filter and (ii) generates an alert indicating compatibility of the second air filter.

The invention relates to a rescue terminal for providing access to an air filter in case of an emergency, including a control system configured and provided to be activated upon a detection of a case of an emergency and having: at least one signaling device configured and provided to emit a signal upon activation of the control system; and a communication unit configured and provided for at least one of receiving and transmitting information indicative for a case of an emergency. The rescue terminal further includes a receiving housing being configured and provided for receiving an air filter device. The invention further relates to an air filter device and a rescue system. The rescue terminal, the air filter device and the rescue system enable a user of the air filter device to quickly access the air filter device in case of an emergency.

Systems and methods of holistically controlling a heating, ventilation, air conditioning, and refrigeration (HVACR) system and a multi-contaminant air cleaner (MCAC) are disclosed. The method includes sensing, via at least one HVACR sensor, at least one comfort parameter; sensing, via at least one MCAC sensor, at least one air-quality parameter; determining, via a controller, minimum air changes of the HVACR system based on the at least one comfort parameter; and determining, via the controller, equivalent air changes of the MCAC and an indoor air quality (IAQ) score based on the at least one air-quality parameter. The method also includes controlling an operation of the HVACR system and controlling an operation of the MCAC based on the determined air changes to optimize an energy consumption.

A structure system having a chiller and multiple central water-cooled air quality regulators connected to the chiller includes the chiller connected to the multiple central water-cooled air quality regulators. The central water-cooled air quality regulators include a central control unit, cooling tube banks, fan, motor, three-way valve, water pipes, air outlet, temperature-controlled electrically-driven air vane, return-air opening, high-efficiency filter, guide opening, indoor display controller, carbon dioxide CO.sub.2 content sensor, temperature sensor, PM2.5 particle cleanliness sensor, and computer. The central control unit is connected to the computer to facilitate the control of the central water-cooled air quality regulators and connected to the chiller. The water pipes connected to the chiller are connected to a cooling tower on top of the building and to the central water-cooled air quality regulators at the stories of the building respectively to cool down the building and regulate air quality therein.

A pollution monitoring system and a method is disclosed. The pollution monitoring system comprises an on-board sensor unit having a plurality of sensors, configured for monitoring air quality by measuring pollution data in the air and a power control unit connected with the on-board sensor unit for controlling the operation of the on-board sensor unit. The pollution monitoring system further comprises microcontroller configured for generating control signals to be transmitted to the power control unit for controlling operation of on-board sensor unit. The microcontroller is configured for receiving information from a base station regarding operation of the on-board sensor unit. Further, the pollution monitoring system comprises an air purification unit configured for receiving the pollution data from the microcontroller and enabling activation or deactivation of the air purification unit based on comparison of the pollution data with predefined threshold values.

An apparatus is used with supplied power for treating air flow of an air handing system of a facility. A frame has a plenum with an inlet and an outlet. The frame is configured to position in the air flow of the air handing system for passage of the air flow therethrough. A filter is disposed in the plenum and is configured to filter the air flow therethrough up to a filtration threshold. An ultraviolet light source disposed in the plenum is connected in electrical communication with the supplied power and is configured to generate ultraviolet radiation in the plenum. A permeable metal barrier disposed in the plenum is configured to impede the air flow therethrough up to an impedance threshold. The barrier is connected in electrical communication to the supplied power and is heated to a surface temperature.