HVAC Filtration Bypass Air

“Bypass Air” is a term often used in HVAC technology to describe air that “bypasses” the air filter and continues downstream. Allowing air to bypass final filters can result in indoor air quality problems, increased health risks and unnecessary costs for building owners and facility managers. This paper explores how the space left around a filter, due to improper sealing, allows bypass air to reduce the efficiency of an air filter.


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