The basic principle of physics behind cooling and heating the air in closed spaces is very simple: warmer air is lighter than cold air, therefore it tends to rise, this is why the air will always be warmer close to your ceiling than at is at floor level. This means that mixing and moving the air inside the room is essential for maintaining the temperature comfortably stable, that’s why Denver HVAC systems include not only heating and cooling functions, but ventilation as well.
The role of the HVAC system’s ventilator is, however, more complex than that of moving the air inside a room. To make sure that the air in your room is not only of the right temperature, but it is healthy as well, you also need a certain amount of air exchange, especially if the room is frequently used by a lot of people. Living beings inhale oxygen and exhale CO2 and other substances, so without proper ventilation, the CO2 in the air of the room will increase, causing the air to turn stale. The breathing process and the simple presence of living beings in the room can also fill the air with viruses and other unwanted components that can spread diseases and need to be evacuated, so proper ventilation is responsible not only for out thermal comfort, but for our health as well.