How treated fresh air units works?

Fresh air units, or air handling units, are designed to condition and circulate fresh outdoor air into indoor spaces. They typically consist of components such as fans, filters, heating/cooling coils, and dampers. The unit draws in outside air, filters it to remove contaminants, and then heats or cools it to the desired temperature before distributing it throughout the building. This process enhances indoor air quality and maintains comfortable environmental conditions.