Guide

The Whole-Home Air Ecosystem Explained

Updated Jan 15, 2025

Why attics, ducts, HVAC systems, and indoor air quality devices should be treated as one connected system.

Most people think about their home's air in terms of a single device — a filter, a purifier, or maybe the thermostat.

In reality, your air is created and conditioned by a chain of systems:

  1. The attic and insulation above your ceilings.
  2. The duct system that moves air room to room.
  3. The HVAC equipment that heats, cools, and dehumidifies.
  4. The indoor air quality stack (filtration, UV, ventilation, etc).

When one link in that chain is neglected, the whole ecosystem shows symptoms: dust, odors, hot/cold spots, and comfort complaints…