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Explore a library of home construction and renovation guidance and easily search through galleries containing hundreds of building science-related photos, drawings, videos, CAD files, case studies, and presentations.

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Image:

Wrong - Air filter was compressed and may not function effectively to filter return air.

Wrong - Air filter was compressed and may not function effectively to filter return air.
Image:

Wrong - Furnace return air filter is dirty and needs to be replaced.

Wrong - Furnace return air filter is dirty and needs to be replaced.
Image:

Wrong - HVAC return air filter has not been replaced for over a year.

Wrong - HVAC return air filter has not been replaced for over a year.