A gas mitigation system includes a duct defining a channel extending between an inlet positioned in flow communication with a ground pit positioned at least partially beneath the building, and an outlet positioned above the inlet and outside of the building. The system further includes a fan assembly having a fan coupled in flow communication with the channel and a motor operably coupled to the fan. A sensor is configured to detect an operating parameter of the fan assembly including at least one of the flow of air within the channel and vibrations generated by operation of the fan assembly. A processor is in communication with the sensor and a memory storing instructions thereon, which, when executed by the processor, may cause the processor to receive the operating parameter detected by the sensor and transmit an alert based upon the operating parameter.

A building panel may be installed below a slab in the construction of buildings. The building panel supports the slab and also provides a ventilation layer that may be depressurized to eliminate or reduce infiltration of radon gas into the building. The ventilation layer may comprise channels which provide a two-dimensionally interconnected void. Ventilation panels which include collars for connecting to ventilation systems may be provided. The panels may be installed directly on compacted soil. The building panels may additionally provide sub-slab insulation and/or a capillary break for water drainage. In some embodiments the building panels are formed substantially entirely of thermal insulating material such as rigid polystyrene foam. In an example embodiment the panels are approximately 4 inches thick and have a grid of intersecting channels formed on an underside of the panels.

A device and apparatus for measuring and monitoring a domestic environment, include a plurality of sensors (SD11-Snm) for measuring local environmental parameters, a remote source (INFO) of data that can be associated to the environmental quality factor, control elements (CX) for controlling the current conditions of the domestic environment being monitored, further including a programmable electronic processing unit for processing dynamically, via an adaptive algorithm, a current value of the quality factor on the basis of the local-measurement data, of the remote data associated to the quality parameter, and of the local environmental conditions.

Some embodiments of the disclosure are directed to an air treatment system, and corresponding methodology, for at least partially removing at least one gaseous contaminant contained in indoor air of a room structured for human occupants. In some embodiments, the system may comprise an air treatment assembly having an indoor air inlet configured to receive indoor airflow directly from a room, a regenerable adsorbent material configured to adsorb at least one gaseous contaminant contained in the indoor airflow, at least one airflow element for directing the indoor airflow to flow through the air treatment assembly, an indoor air outlet for expelling the indoor air, from the air treatment assembly back into the room, a purge air inlet configured to receive and direct purge air from the room over and/or through the adsorbent material for removal of at least a portion of the at least one gaseous contaminant, and a purge air outlet for expelling the purge air out of the air treatment assembly.

A building panel may be installed below a slab in the construction of buildings. The building panel supports the slab and also provides a ventilation layer that may be depressurized to eliminate or reduce infiltration of radon gas into the building. The ventilation layer may comprise channels which provide a two-dimensionally interconnected void. Ventilation panels which include collars for connecting to ventilation systems may be provided. The panels may be installed directly on compacted soil. The building panels may additionally provide sub-slab insulation and/or a capillary break for water drainage. In some embodiments the building panels are formed substantially entirely of thermal insulating material such as rigid polystyrene foam. In an example embodiment the panels are approximately 4 inches thick and have a grid of intersecting channels formed on an underside of the panels.

A radon removal system includes a slab forming part of a foundation of a building, a barrier layer laid under the slab, the barrier layer being vertically gas impermeable and horizontally gas permeable. A gas inlet in the sealed system provides a fluid connection for gas flowing from the barrier layer through a sealed system (for example a sump body with water inlet, sump pump and water outlet) to a gas outlet. A negative pressure generated by the sealed system brings gas from the barrier layer into the sealed system through the gas inlet and out of the sealed system through the gas outlet.

An indoor air cleaning system is disclosed and includes gas detection modules, 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. The microcontroller processes air pollution data and outputs regulation signals. The air cleaning device includes a fan, a filtering element and a driving control component. The central control and regulation device communicates through wired or wireless communication, providing control commands to the gas detection modules. The central control and regulation device controls the fan to guide the air pollution through the filtering element, and the indoor air quality is maintained based on the output pollution data. Consequently, the gas state reaches the air pollution data targeted by the gas detection modules based on the PM2.5 particle count accumulated in 24 hours, so as to meet a clean room requirement of ZAPClean Room 19.

A method and system for monitoring using a sub-slab sensor assembly for a building having a slab includes a housing, a first air quality sensor coupled to the housing and generating a first air quality signal for air above the slab, a second air quality sensor coupled to the housing and generating a second air quality signal for air below the slab and a pressure sensor coupled to the housing. The pressure sensor generates a pressure signal corresponding to the pressure below the slab. A position sensor generates a position signal corresponding to a location of the sensor. A network interface communicates the first air quality signal, the second air quality signal or the pressure signal, or warning signals corresponding thereto and the position signal to a network.

A central controller for an intelligent environmental air management system includes at least one processor and memory storing instructions executable by the at least one processor. The instructions, when executed, cause the central controller to detect and communicate with an air hazard sensor, an environmental condition monitor, and an air hazard mitigation device of the intelligent environmental air management system.