Filters
Filters are essential components within any HVAC system, forming the first line of defense against particulates, dust, and airborne contaminants. Their primary function is dual: to safeguard expensive downstream equipment (like heat exchangers and coils) from fouling, and critically, to maintain healthy Indoor Air Quality (IAQ) for building occupants. This category includes traditional media filters as well as advanced purification methods like electrostatic and ultraviolet (UV) filters. Standard filters are typically used for general comfort applications, while high-efficiency filters and HEPA filters are mandatory for specialized environments. Regular filter replacement is crucial, as dust accumulation increases static pressure drop, leading to decreased airflow and wasted fan energy. Strategic filter selection is paramount for compliance and system optimization. Beyond compliance, high-quality filtration contributes directly to energy efficiency by keeping cooling coils clean, thereby preserving their optimal heat transfer coefficient and reducing the overall operating cost of the HVAC unit.