US 2021/0260519 A1 · SCRUBBER FOR HVAC SYSTEM

Abstract

In some embodiments, there is provided a scrubber system for cleaning return air in an HVAC unit, where the scrubber system attaches directly to an inlet of the return-air side of the HVAC unit, for example, by the mating of a flange on the system with a matching flange on the HVAC unit. The bolt-on scrubber system may comprise one or more sorbent materials, a fan for circulating return air through the sorbent, a damper-controlled inlet and a damper-controlled outlet to the attached return air side of the HVAC unit. Further, an additional air flow channel and a damper may be included in the system to control the flow of outside air into the HVAC unit. In some embodiments, the sorbents may be contained in removable inserts.

Claims23

Dependent claims

A scrubber assembly for scrubbing air from an enclosed environment, comprising:

a housing;
an interface arranged on an exterior of the housing and including a return air inlet (RAI) and a treated air outlet (TAO), and
an adsorbent material configured to treat air received from the RAI,
wherein:
the first interface is configured to mate with or otherwise couple to an external air inlet (EAI) of a heating, ventilation and air conditioning (HVAC) system,
the EAI opens to a chamber of the HVAC system, through which air returned from an interior space (return air) traverses,
the RAI is configured to receive at least a portion of the return air flowing via an EAI,
the adsorbent material is configured to treat the at least a portion of the return air received via the RAI by adsorbing at least one contaminant contained therein, and
the treated air is expelled from the scrubber assembly back to the HVAC system via the EAI.

6 more elements

Dependencies are inferred from the claim text.

Scrubber for hvac system

Life of this patent

Scrubber for hvac system

Life of this patent

Abstract

Claims23