A damper is configured for placement within a ductwork system that includes a duct supplying conditioned air through a register boot to a register vent within a room of a building. The damper includes a damper body and a damper blade pivotally secured relative to the damper body and a resilient seal extending radially outwardly from the damper blade, the damper blade being pivotally movable between a first position in which air flow is restricted and a second position in which air flow is less restricted. A drive motor is secured relative to the damper body and is configured to move the damper blade between the first position and the second position. A deployment strap extends downstream from the damper body and facilitates placement of the damper body in a duct from an installation location within or downstream of the register boot.

A damper assembly for use in a forced air duct feeding one or more air register vents includes a damper frame having an outer frame periphery and an inner frame periphery, the inner frame periphery defining an air flow aperture, and a damper blade that is pivotally secured relative to the damper frame and is pivotable between an open position and a closed position. An outer seal extends radially outwardly from the outer frame periphery of the damper frame and is configured to make a seal against an inner surface of the forced air duct when the damper assembly is deployed within the forced air duct.

A vapor management system includes a monitoring service system configured to communicate one or more system parameters with at least one vapor mitigation system. The monitoring service system is further configured to generate a user interface. The user interface is configured to display and permit adjustment of the one or more system parameters.

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.

An fluid monitoring system can include a filter having an upstream face and a downstream face and defining a form factor, a sensor package arranged within the form factor of the filter to detect at least one quality factor of a surrounding medium, a transmitter electronically coupled to the sensor package and including an antenna for autonomous wireless transmission of the detected fluid quality information, and a power subsystem coupled to the sensor package and the transmitter to provide access to continuous electrical power thereto.

The present application discloses a device for detecting and reducing radon concentration in an indoor environment. This device comprises at least one radon gas sensor and, at least one differential pressure sensor for measuring the difference between the indoor and outdoor atmospheric pressures, wherein both sensors are connected to a microcontroller configured to perform the pre-processing and aggregation of the data obtained by said sensors. To reduce radon levels, it triggers at least one physical actuator to activate a ventilation device for reducing the radon concentration in an indoor environment when indoor radon concentration is above a first predetermined threshold or when indoor radon concentration is above a second predetermined threshold and the differential pressure is negative.

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 motorized window with one or more motors and a frame with a slidable segment is disclosed. A drive system with pulleys engages with a belt or chain mounted to the frame or slidable segment. Rotating a first pulley in a first rotational direction causes the first pulley to pull the slidable segment in a first linear direction. Rotating the first pulley in a second rotational direction causes the first pulley to pull the slidable segment in a second linear direction. Preferably, a controller controls the operation of the motors. Sensors inform the controller, and user input via a mobile device enables both direct user control and programming of the controller.

Embodiments of the present disclosure are directed to a method for reducing radon contained in indoor air from an indoor area. In some embodiments, indoor air containing radon from indoor air is directed through at least one layer of an adsorbent medium configured for capturing radon from air. In some embodiments, the indoor air is directed through the adsorbent medium at a predetermined flow-rate such that the fraction of radon captured in a single pass though the assembly is very low, approximately 10% or less of the concentration of radon in the incoming air. The low capture rate is offset by multiple passes of the air through the medium.

A radon management system using a radon detector is proposed. The system includes: at least one radon detector installed in a specific space indoors or outdoors, and configured to detect in real time alpha particles present in the specific space, output a predetermined alpha particle detection signal, count for a preset measurement time to calculate and transmit an alpha particle concentration value, and transmit unique device identification information; and a radon management server configured to collect the unique device identification information and alpha particle concentration value, calculate and quantify an average value of the collected alpha particle concentration values to be converted into a database for each radon detector, store and manage the average value, compare the alpha particle concentration value and the average values of the previously stored alpha particle concentration value to each other to calculate a change amount thereof, and generate radon generation event information data.