Treated Fresh Air Units (TFA)

Treated Fresh Air (TFA) refers to a specialized type of Air Handling Unit (AHU) used in modern Heating, Ventilation, and Air Conditioning (HVAC) systems. Designed to enhance indoor air quality, TFA units introduce filtered and conditioned fresh air from the outdoors into interior spaces. Often categorized under Direct Expansion (DX) units due to their use of refrigerant-based cooling, these systems are commonly installed in lobbies, corridors, and other common areas where moderate temperature control is required. Typically, they maintain an indoor temperature about 4°C to 6°C lower than the ambient outdoor temperature, ensuring a comfortable yet energy-efficient environment.

TFA units offer several key advantages, including improved indoor air quality by effectively filtering out pollutants, allergens, and odors. Their integration of DX technology allows for efficient cooling, helping reduce overall energy consumption. These systems contribute significantly to occupant comfort, especially in high-traffic public spaces, by maintaining fresh and healthy air circulation. Additionally, their design promotes cost-effective operation, making them a reliable choice for sustainable building management. Overall, Treated Fresh Air units provide a balanced solution that supports both environmental performance and occupant well-being.