It is a known fact that even if the heating and cooling system is maintained, it will ultimately require replacement which can be costly and disruptive. Retrofitting AHU/TFA system is a relatively inexpensive way to improve comfort, health, and safety. Advind Healthcare provides retrofitting and replacement solutions for air handling units (AHU) or treated fresh air units (TFA) to improve the quality of your indoor air while cutting down on energy expenses and increasing system efficiency. HVAC up-gradation ranges from installing continuous environmental management solutions to replacing/ retrofitting individual components of the system. Up-gradation of the inefficient and unreliable HVAC systems offers significant energy savings, is less costly to maintain, and improves the indoor air quality.