Shown here are the major components of air handling.
ERV (Energy Recovery Ventilator) — the proper device to bring fresh air into building and exhaust the building air. No other is desired or needed.
HVAC — provides the heating and cooling for structure.
Circulation — can be provided by large fans or separate ducted.
Thermal Mass (or Thermal Battery) — provided by concrete shell – it is important to properly use it. (Barry Byers)