Abstract: In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

Abstract: In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

Abstract: In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

Abstract: Some embodiments of the disclosure are directed to an air/fluid filter device comprising a sheet of material initially configured in one or more planar sections, a plurality of organized air/fluid outlets arranged on the sheet and configured to allow the air/fluid to flow through the sheet, and a plurality of cyclonic compartments coupled to the sheet, each compartment comprising a cyclonic structure comprising at least one of a cone or a cylinder, including a tangential inlet, and a cyclonic outlet at the end of the cyclonic structure that is coupled to the sheet. In some embodiments, each tangential opening is in air/fluid communication with a respective incoming air/fluid side of the sheet, and each cyclonic outlet is coupled to a respective outlet of the sheet.

Abstract: An air filtration system comprising a plurality of sections configured to receive an incoming airstream is disclosed. In some embodiments, each section of the plurality of sections includes a first airstream receiving side (ASRS) and a second air stream exhaust side (ASES), and a plurality of cells each comprising a cyclonic cavity having a tangential inlet arranged to receive a portion of the airstream via the ASRS, and an axial outlet arranged to exhaust the portion of the airstream to the ASES. Each section is further configured with a cover that can be opened and closed, such that the closing of one or more respective covers of respective sections forces the airstream to flow through remaining sections having open covers as well as their respective cells, at a velocity greater than when such one or more respective covers are open.

Abstract: An air filtration system comprising a plurality of sections configured to receive an incoming airstream is disclosed. In some embodiments, each section of the plurality of sections includes a first airstream receiving side (ASRS) and a second air stream exhaust side (ASES), and a plurality of cells each comprising a cyclonic cavity having a tangential inlet arranged to receive a portion of the airstream via the ASRS, and an axial outlet arranged to exhaust the portion of the airstream to the ASES. Each section is further configured with a cover that can be opened and closed, such that the closing of one or more respective covers of respective sections forces the airstream to flow through remaining sections having open covers as well as their respective cells, at a velocity greater than when such one or more respective covers are open.

Abstract: An air filter comprising a housing, a plurality of cyclonic-element arrays and a plurality of individual airflow paths is disclosed herein. The housing includes a first side configured to be arranged or otherwise exposed to an upstream side of a first airflow, and a second side configured to be arranged or otherwise exposed to a downstream side of the first airflow. In some embodiments, the plurality of cyclonic-element arrays may be organized in a parallel or approximately parallel arrangement within and/or supported by the housing. Further, the plurality of individual airflow paths may correspond to the plurality individual of cyclone elements in each array life.

Abstract: Some embodiments of the present disclosure present closed-loop heating, temperature-swing adsorption regenerative scrubbing systems and methods. In some embodiments, such embodiments include providing a scrubbing system including a sorbent material, a plurality of dampers for controlling airflow over and/or through the sorbent according to an absorption mode, a closed-loop heating mode and a flushing mode, first controlling of the plurality of dampers so as to establish flowing an indoor airflow over and/or through the adsorbent during the adsorption mode, second controlling of the plurality of dampers so as to establish a closed loop airflow during the closed-loop heating mode, and third controlling of the plurality of dampers so as to establish a purging airflow during the flushing mode.

Abstract: An air filter comprising a housing, a plurality of cyclonic-element arrays and a plurality of individual airflow paths is disclosed herein. The housing includes a first side configured to be arranged or otherwise exposed to an upstream side of a first airflow, and a second side configured to be arranged or otherwise exposed to a downstream side of the first airflow. In some embodiments, the plurality of cyclonic-element arrays may be organized in a parallel or approximately parallel arrangement within and/or supported by the housing. Further, the plurality of individual airflow paths may correspond to the plurality individual of cyclone elements in each array life.

Abstract: Embodiments of the present disclosure are directed to cyclonic air filtering systems for removing fine particles from an air stream. In some embodiments, small diameter cyclonic separators/elements are used to remove fine particles from an airflow where a large number of such elements are assembled together in a compact arrangement. In some embodiments, an air filtration system is presented and can comprise a housing including a plurality of compartments, an air inlet side and an air outlet side. Such a system can further include a plurality of cyclonic filtering arrays each housed in a respective compartment and each comprising an assembly of a plurality of cyclonic elements configured to filter air of an airflow via centrifugal force (i.e., cyclonic separation). The system can include mating means configured such that most, and in some embodiments, all of the airflow flows only through the arrays.

Abstract: In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

Abstract: A sorbent cartridge retention frame configured for use in an air scrubbing system comprising a first inlet side, a second outlet side, a plurality of compartments each configured to hold a solid-sorbent material, a plurality of respective walls arranged to form and separate the plurality of compartments, a first permeable membrane arranged to cover the first inlet side, a second permeable membrane arranged to cover the second outlet side. The first and/or second permeable membrane are configured for affixation to respective ends of the walls through a process of melting and solidification of the wall material such that wall material bonds with the membrane material.

Abstract: An air filtration system comprising a plurality of sections configured to receive an incoming airstream is disclosed. In some embodiments, each section of the plurality of sections includes a first airstream receiving side (ASRS) and a second air stream exhaust side (ASES), and a plurality of cells each comprising a cyclonic cavity having a tangential inlet arranged to receive a portion of the airstream via the ASRS, and an axial outlet arranged to exhaust the portion of the airstream to the ASES. Each section is further configured with a cover that can be opened and closed, such that the closing of one or more respective covers of respective sections forces the airstream to flow through remaining sections having open covers as well as their respective cells, at a velocity greater than when such one or more respective covers are open.

Abstract: An air filter comprising a housing, a plurality of cyclonic-element arrays and a plurality of individual airflow paths is disclosed herein. The housing includes a first side configured to be arranged or otherwise exposed to an upstream side of a first airflow, and a second side configured to be arranged or otherwise exposed to a downstream side of the first airflow. In some embodiments, the plurality of cyclonic-element arrays may be organized in a parallel or approximately parallel arrangement within and/or supported by the housing. Further, the plurality of individual airflow paths may correspond to the plurality individual of cyclone elements in each array life.

Abstract: In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

Abstract: In some embodiments, a multistage scrubber that includes a plurality of stages, each stage comprising one or more scrubbing modules having adsorbents configured to adsorb and remove molecules from a flowing mixture of gas traversing the multi-stage scrubber is disclosed. The sorbents may be used in repeatable adsorption-regeneration swing cycles including concentration swing adsorption (CSA) cycle, temperature swing adsorption (TSA) cycle and pressure swing adsorption (PSA) cycle.

Abstract: A sorbent cartridge retention frame configured for use in an air scrubbing system comprising a first inlet side, a second outlet side, a plurality of compartments each configured to hold a solid-sorbent material, a plurality of respective walls arranged to form and separate the plurality of compartments, a first permeable membrane arranged to cover the first inlet side, a second permeable membrane arranged to cover the second outlet side. The first and/or second permeable membrane are configured for affixation to respective ends of the walls through a process of melting and solidification of the wall material such that wall material bonds with the membrane material.

Abstract: Some embodiments of the present disclosure present closed-loop heating, temperature-swing adsorption regenerative scrubbing systems and methods. In some embodiments, such embodiments include providing a scrubbing system including a sorbent material, a plurality of dampers for controlling airflow over and/or through the sorbent according to an absorption mode, a closed-loop heating mode and a flushing mode, first controlling of the plurality of dampers so as to establish flowing an indoor airflow over and/or through the adsorbent during the adsorption mode, second controlling of the plurality of dampers so as to establish a closed loop airflow during the closed-loop heating mode, and third controlling of the plurality of dampers so as to establish a purging airflow during the flushing mode.

Abstract: 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.

Abstract: A filter comprising a housing, frame or boundary, a plurality of cyclonic-element arrays and a plurality of individual airflow paths is disclosed herein. In some embodiments, the filter is configured to be arranged or otherwise exposed to an upstream side of an airstream, and the cyclone element arrays are configured to separate particles entrained in the airstream. The plurality of cyclonic-element arrays may be organized in a parallel or approximately parallel arrangement, and the plurality of individual airflow paths may correspond to the plurality individual of cyclone elements in each array life.