How to Reduce Humidity in Your Home Without a Dehumidifier

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Excess humidity can do a lot of damage to the interior of any home. If you don’t have a dehumidifier, though, it may feel like there’s nothing you can do about this issue. Fortunately, whether you’re improving air flow or getting rid of the moisture in the air, there are lots of ways you can reduce the humidity in your home without a dehumidifier.

Method 1
Method 1 of 2:

Improving Air Flow

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    Opening multiple windows will allow a cross breeze to develop in your home, which will help more humid air to circulate out. You don’t need to open your windows all the way; just crack them 1 to 2 inches (2.5 to 5.1 cm). [1]
    • Aim to open at least 2 windows on different sides of your home so the humid air can move throughout your home.
    • If you can’t open all of your windows, prioritize opening windows in those rooms where lots of moisture tends to build up (e.g., the bathroom).

    Warning : This may not be an effective solution if you live in a particularly humid area. You may just end up increasing the humidity in your home!

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    Not only does cooling the air reduce its moisture content, but the AC will also help circulate air in your home. This is especially important during the warm summer months or during particularly humid weather. [2]
    • For example, it may seem counterintuitive, but it’s a good idea to run your air conditioner (at least for a little while) during rainy weather.
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    These work particularly well in conjunction with open windows and running AC. Point the fans towards open windows so that they’re constantly pushing air outside. [3]
    • Your best bet is to go with window fans that constantly move air outside. However, if you don’t have access to this kind of system, standalone fans will work just as well.
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    Replace the filters on your air conditioning units on a regular basis. Clogged air filters will gradually make your air conditioner less efficient over time. This will translate to warmer, and therefore more humid, air in the long run. In general, replace the filter every 90 days to keep it running as smoothly as possible. [4]
    • If you have pets that shed hair, like cats or dogs, bump up this maintenance schedule and replace the filter every 60 days.
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Method 2
Method 2 of 2:

Getting Rid of Moisture

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    Bathrooms are actually the largest producers of humidity in homes, usually because of showers. By taking shorter showers, you’re significantly reducing the amount of moisture that your bathroom generates in your home.
    • Taking colder showers also reduces humidity overall, since warm water (and warm air) tends to add more moisture to the air than cold water.
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    Plants are constantly releasing moisture vapor into the air, making them pesky contributors to indoor humidity. Moving them outside is your best bet, but if this isn’t possible, the next best thing is to keep them all in a single room. [5]
    • You’ll need to take extra steps to dehumidify this room, such as opening the windows, keeping a fan in the room, and perhaps setting out a bowl of natural dehumidifiers.
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    Baking soda, laundry detergent, charcoal, and rock salts can all be used to absorb moisture out of the surrounding air. Fill a large bowl with one of these substances and place it in a room with lots of moisture for greatest effect. [6]
    • Refill this bowl every 2-3 days to make sure it's continually effective.
    • There's no set amount of a dehumidifying substance that you need to put out for them to work. Aim to put out at least 1 large bowl in every room of your home.
    • You can also buy commercial desiccants that draw moisture out of the air with calcium chloride. These can be bought at most hardware and home improvement stores.
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    This is especially important if you’re boiling water, which will produce a lot of steam. For best results, make sure the exhaust fan is oriented upwards and towards the outside of your home. [7]
    • Whenever possible, keep a lid over what you’re cooking to limit the amount of steam and water vapor released into the air.
    • If you can, try to avoid cooking on warm, humid days.
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    Leaking pipes can be a sneaky source of moisture in the air, especially in the bathroom and kitchen. Be on the lookout for leaky pipes and fix them as soon as possible when you notice them. [8]
    • Be sure to mop up any water that may have pooled up beneath a leaky pipe. Remember, this is where the bulk of the moisture is coming from!

    Tip : A good way to prevent leaky pipes is to clean your gutters every week. Backed-up gutters are one of the most common causes of indoor water leaks.

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Expert Q&A

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  • Question
    How can I stay cool without an air conditioner or a dehumidifier?
    Victor Belavus
    Air Conditioning Specialist
    Victor Belavus is an Air Conditioning Specialist and the Owner of 212 HVAC, an air condition repair and installation company based in Brooklyn, New York. In addition to HVAC and air conditioning units, Victor also specializes in furnace repair and air duct cleaning. He has over 10 years of experience working with HVAC systems.
    Victor Belavus
    Air Conditioning Specialist
    Expert Answer
    Turn on your fans to keep the air circulating in your home. Keep yourself well hydrated by drinking plenty of water and open your windows before the sun comes up and after it goes down. Finally, take a cool shower whenever you get hot and before you go to bed.
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      References

      1. ↑ Victor Belavus. Air Conditioning Specialist. Expert Interview. 6 May 2020.
      2. ↑ https://www.criticalcactus.com/reduce-home-humidity/
      3. ↑ Victor Belavus. Air Conditioning Specialist. Expert Interview. 6 May 2020.
      4. ↑ Victor Belavus. Air Conditioning Specialist. Expert Interview. 6 May 2020.
      5. ↑ https://www.criticalcactus.com/reduce-home-humidity/
      6. ↑ https://www.youtube.com/watch?v=NkrYKudcFkk#t=15s
      7. ↑ https://www.criticalcactus.com/reduce-home-humidity/
      8. ↑ Victor Belavus. Air Conditioning Specialist. Expert Interview. 6 May 2020.

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