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Mold

  • The Key to Mold Control is Moisture Control

    If mold is a problem in your home, you must clean up the mold and eliminate sources of moisture. Learn more about mold and moisture control.

  • Was your home in a flood?

    Learn about flood and mold cleanup.
    Información relacionada en español.

Molds are part of the natural environment, and can be found everywhere, indoors and outdoors. Mold is not usually a problem, unless it begins growing indoors. The best way to control mold growth is to control moisture. This website provides guidance about mold and moisture for homes, schools, multifamily and commercial buildings. Molds can have a big impact on indoor air quality.

  • About mold

    Learn the basics about mold.

    Learn about mold
  • Mold and your home

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    Learn what you can do to prevent mold growth in your home.

    Learn about mold and your home
  • Schools and commercial buildings

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    Learn how to address mold growth in schools and large buildings.

    Learn tips and strategies
  • Mold cleanup

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    Best practices to safely cleanup mold.

    Learn best practices to cleanup mold
  • Public health professionals

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    Resources for public health professionals.

    Find technical knowledge resources
  • Education corner

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    Resources for students, teachers and parents.

    See education resources
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Publications

Find mold-related publications, factsheets, and infographics.

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Mold House

Take the interactive Mold House tour. 

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Frequently Asked Questions

Find answers to your mold-related questions.

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Contact Us about Mold to ask a question, provide feedback, or report a problem.
Last updated on July 29, 2025
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