Copper and copper alloy metal sur­faces have an intrinsic ability to inhibit the growth of algae, fungi/molds, viruses and bacteria. Studies confirm that these sur­faces are effective antimicrobial agents that kill microbes within hours.

In today’s modern buildings, concerns about exposure to toxic microorganisms have created a dire need to improve the hygienic conditions of heating, ventilation and air conditioning (HVAC) systems, which are believed to be factors in over 60% of all sick building situations (Col­let and Associates). The combination of copper’s superior resistance to mold growth and excellent thermal conductivity can improve the energy eficiency of the systems in which it is installed.

Using antimicrobial copper and copper alloy metals instead of biologically inert materials in heat exchanger tube, fins, filters and condensate drain pans is rec­ommended as a viable and cost-effective means to help control the growth of fungi and bacteria that thrive in these dark and damp components of HVAC systems.

The antimicrobial properties of uncoated copper and copper alloy metals are continuously effective and do not diminish over time. In fact, they are enhanced with the natural formation of a self-protective corrosion fi lm (tarnish) (Michels 2005). Improvements to indoor air quality are also anticipated....

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Source: CDA

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