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What is a fresh air intake? Why do I need it?

April 26, 2017air fresh intake

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What is a fresh air intake? Why do I need it?

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Fresh air intake is a code requirement. The code says that we must provide 15 CFM per bedroom plus one of fresh outdoor air for the home. Example: A home with 4 bedrooms must have 75 CFM of fresh air. New homes must have fresh air intakes because they are built much more air tight than they were in the past. Fresh air intakes are ducted into the return air of the air conditioning system and the fresh air is then filtered through the systems filter.