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Over the last two decades, advances in HVACR technologies have produced significant improvements in energy efficiency.

Clogged filters resulting from dust build-up lead to a gradual loss of efficiency in indoor HVAC units over time. As dust increasingly makes the system work harder, reductions in airflow and the heat exchange surface result in reduced capacity, with less heat being dissipated into the air, causing discomfort to building occupiers. Over time it will affect system reliability, causing more maintenance call outs to site.

Along with commercial HVAC applications, supermarkets can also take advantage of improved efficiency in components and systems.

Technological advancements offered by City Building Services have resulted in numerous efficiency improvements.