How Can I Lower the Humidity Level in My House?

Written by constance barker
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High humidity levels within a home may result in breathing difficulties for those afflicted with lung or asthma problems. High humidity can lead to a mildew or mould problem, increasing the threat of health issues. To lower the humidity in a home, use several options to remove moisture or keep it from entering. With lower humidity, you reduce the risk of mould and mildew formation and ease breathing issues.

Skill level:
Moderate

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Things you need

  • Extended gutters for downspouts
  • Dehumidifier

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Instructions

  1. 1

    Turn on exhaust fans in the bathroom and kitchen. Steam from showers or cooking contribute to the humidity level within a home. Open windows during windy days to ventilate rooms. Turn on ceiling or floor fans to dry out moisture within the home. Avoid laying clothes to dry on a drying rack or table.

  2. 2

    Check for pooling water around the foundation of the home. Slope dirt away from the home with a gradual descent of at least 2 feet from the foundation. Fasten 3- to 4-foot extended gutters to the existing downspouts so water flows away from the foundation after a rainfall.

  3. 3

    Move plants outside, and avoid aquariums within the home. Watering plants and the water evaporation from an aquarium cause moisture to build in a home.

  4. 4

    Install a dehumidifier. You may need two or more dehumidifiers if you're trying to lower humidity in separate levels of a house. As air flows through a dehumidifier, the filter catches the moisture, depositing it into a drain pan. Check and empty the drain pan daily.

Tips and warnings

  • Avoid opening windows on days with high humidity.

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