What MERV rating range balances filtration capability for most residential HVAC systems?
Answer
11 to 13.
Mechanical air filtration via HVAC systems is a crucial strategy for controlling the fraction of dust that becomes airborne. When selecting filters, there is a balance required between capturing smaller particles and maintaining sufficient airflow through the system. For most standard residential HVAC units, filters with a Minimum Efficiency Reporting Value (MERV) rating falling between 11 and 13 are frequently recommended. This range offers a good compromise, allowing the system to capture smaller particulates effectively without causing undue resistance that could strain or damage the air handler.
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