20 Ways To Lower Humidity In The House (2024)

Humidity in the home can create a sticky situation, particularly in the summertime, when your abode should serve as a place to cool off after long days in the sun. Here’s how to reduce the humidity in your home.

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1. Turn Up the AC

Your air conditioner will naturally decrease the humidity in your home by removing warm air and introducing cool air. Make sure you change the AC filter frequently in order to maximize the airflow.

2. Use a Ventilation Fan

When you’re cooking, showering or doing any other activity that introduces heat into your home, be sure to use your exhaust or ventilation fans in order to increase airflow and decrease humidity. If you don’t have exhaust or ventilation fans, consider having them installed in the more humidity-prone parts of your house.

3. Get a Dehumidifier

A dehumidifier is designed to fit inside your furnace air handler and to remove moisture from air as it passes through. This handy tool will help keep your home dry and cool.

4. Cool Your Jets

Hot showers, while relaxing, can introduce a lot of humidity into an environment. Colder showers will decrease the amount of steam in the air and thus, humidity levels overall. Plus, they’re ultra-refreshing during the dog days of summer.

5. Fix Your Leaks

Leaky pipes and faucets add moisture to an environment, contributing to the humidity as a whole. Be sure to repair any leaks or drips in your home, and consider wrapping any exposed pipes in insulators in order to discourage condensation from forming. Not sure if you’ve got leaks? Irregular water bills, stained drywall and wet spots are all telltale signs.

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6. Get Your Mind in the Gutter

Gutters can cause humidity, particularly if the downspout is facing the direction of your home and creating indoor water leaks. Be sure to clean your gutters regularly, and check that your downspout is turned away from your home and extended at least six feet.

7. Get a Clothesline

Rather than dry your laundry that cannot be put in the dryer indoors, try drying it outside. Particularly in warm months, wet clothes add humidity to the air that can result in unpleasant living conditions. Use a clothesline or an outdoor drying rack.

8. Move Your Plants

Houseplants release moisture into the air, so if you have a lot of them, they could be contributing to the humidity of your home. Try moving them outside, at least temporarily.

9. Use Charcoal

You might have charcoal briquettes lying around for barbecuing purposes, but they can also help to dehumidify your home. Charcoal will suck the moisture out of the air and absorb it. Simply place a few briquettes in a container like a basket or a can and replace them every couple of months.

10. Open the Windows

Even if it’s humid outside, opening the windows can help dehumidify your home since moving air will discourage moisture-filled air from settling in your home. Open windows can be especially helpful in dehumidifying moisture-prone areas like your kitchen and bathrooms.

11. Smell Your Rugs

Rugs can absorb a lot of moisture, and if yours smell like mold, mildew or fungus, that’s a pretty sure sign that there are moisture issues going on. If your rugs seem to be holding moisture, have them cleaned or toss ‘em all together.

12. Use Rock Salt

You can make your own dehumidifier using rock salt, also known as halite. It’s readily available online and at your local home goods store, and it can be a handy tool for absorbing moisture.

13. Use Baking Soda

Baking soda is also pretty effective at eliminating moisture. Place bowls of the stuff in any areas of your house where humidity is high. Baking soda works best in smaller rooms, so use charcoal or rock salt if you’re working with a larger area.

14. Try Cat Litter

Similar to baking soda, silica-based cat litter absorbs plenty of moisture from the air. It makes sense when you think about it, as cat litter is designed to absorb, well, liquids.

15. Install a Vapor Barrier

If you have a crawl space, moisture from the soil might be entering your home, increasing the humidity level at large. You can install a vapor barrier over the soil to prevent humidity from entering your living space.

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16. Cover Your Pots

When possible, use a pot lid to cover your pots when cooking. This will prevent vapor from entering the air in your home.

17. Leave Interior Doors Open

If your family’s okay with sacrificing a bit of privacy, try keeping the interior doors in your house open to encourage better air circulation.

18. Get a Humidity Monitor

Available online or at your local home goods store, a humidity monitor will allow you to check the moisture levels of the air in your home so that you have a better sense of what you’re dealing with.

19. Try Weatherstripping

When you weatherstrip around your windows and doors, you create an airtight seal that prevents humidity from outside seeping into your home. You can buy a weatherstripping kit, or just adhesive-backed foam, online or at your local home goods store.

20. Get Rid of Carpets

Carpet is notorious for retaining tons of moisture, so if possible, eliminate carpeting from your home.

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Signs to Look For While Identifying High Indoor Humidity

High indoor humidity can be a major cause of discomfort and damage. While there are various signs of high indoor humidity, three are most common: condensation, mold growth and unusual odors. By being aware of these signals, individuals can take proactive measures to manage humidity levels, ensuring a home or building remains conducive to both physical well-being and the longevity of its structural components.

Condensation

Condensation can be a sign that you have high indoor humidity and occurs when warm, moisture-laden air comes into contact with cooler surfaces, causing water vapor to transform into liquid water. You can identify condensation by droplets on windows, mirrors or other surfaces.

Condensation may lead to more significant issues over time. Persistent condensation may contribute to mold growth and damage to affected surfaces. Recognizing and addressing condensation is crucial in maintaining a comfortable indoor environment.

Mold

If you’re worried about mold in your home, you should know that high indoor humidity provides an ideal environment for mold growth. Mold thrives in damp conditions and can appear on walls, ceilings and other surfaces. Look out for discolored patches, fuzzy growth or a musty odor, as these are common signs of mold. Addressing the source of the unwanted moisture is crucial to preventing and eliminating mold issues.

Odors

When the air is too humid, it can lead to musty or stale odors. These odors are often the result of mold and mildew growth. If you notice unpleasant smells in your indoor environment, it could indicate high humidity levels. Identifying and addressing where the moisture comes from can help eliminate these odors.

When to Call a Professional

High humidity in your home can be an uncomfortable and unhealthy situation. There are many DIY methods for managing indoor moisture levels, but there are also certain situations that may require the expertise of a professional. Whether you’re dealing with persistent humidity issues, mold growth, structural damage or HVAC malfunctions, understanding when to seek help from a professional is crucial in ensuring effective and lasting solutions for a well-balanced indoor climate.

  • Persistent high humidity: If you’re having trouble lowering the humidity in your space, a professional can assess the situation and recommend more advanced solutions.
  • Mold growth: If you find mold in your home, especially in areas that are hard to reach or hidden, a professional may be necessary to address the root cause and ensure proper cleanup.
  • Structural damage: If you’ve been experiencing high humidity levels and want to find out if they’ve caused structural damage, such as rotting wood or compromised foundations, a professional can evaluate the extent of the damage and propose necessary repairs.
  • HVAC issues: HVAC systems not effectively controlling humidity can lead to unsightly mold growth and high energy costs. A professional technician can inspect and repair your HVAC system to ensure it operates optimally.
20 Ways To Lower Humidity In The House (2024)

FAQs

How to lower the humidity in your house? ›

Understanding the Ideal Humidity Level
  1. Open a Window for Air Circulation. One simple but effective way to lower indoor Moisture is by opening your windows and doors. ...
  2. Employ Air Conditioning. ...
  3. Clean Your Gutters Regularly. ...
  4. Ventilate Your Crawl Space. ...
  5. Keep Your Dryer Vents Clean. ...
  6. Use Exhaust Fans. ...
  7. Explore Dehumidifiers.
Jul 27, 2023

How to get rid of humidity in house without a dehumidifier? ›

The simplest method is to open windows and doors to allow more airflow, he says, 'but using exhaust fans in the kitchen and bathroom can also make a difference, especially as these areas often contribute to high humidity levels. ' Ventilation can also help if your house smells musty as a result of high moisture levels.

What absorbs humidity in a house? ›

If solving your moisture problem is something you'd like to do inexpensively, rock salt may be your answer. Because rock salt is hygroscopic it absorbs moisture from the air. If your plan is to get rid of the humidity in a damp basem*nt, start with a 50-pound bag of sodium chloride to make your rock salt dehumidifier.

How do you get humidity below 50%? ›

How Can I Reduce My Humidity Levels?
  1. Use Your Air Conditioner. ...
  2. Actively Use Your Exhaust/Ventilation Fans. ...
  3. Take Cooler Showers. ...
  4. Fix Any Leaking Pipes. ...
  5. Keep Your Gutters Clean. ...
  6. Dry Your Laundry Outside. ...
  7. Get a Dehumidifier. ...
  8. Move Your House Plants.
May 30, 2018

How to naturally dehumidify a room? ›

Improving ventilation is the most natural way to dehumidify your house. Simple actions such as opening windows and doors can significantly enhance air circulation and reduce moisture levels.

Do fans reduce humidity? ›

Keeping the air moving is an essential part of keeping excessive moisture away. Using ceiling fans, pedestal fans and other air-moving appliances can make a big difference and suck excess moisture out of the indoor air. Check the exhaust fans in your attic, kitchen and bathroom.

How do you make a homemade humidity absorber? ›

Get a small bowl that will fit in the area you'd like to place it in. Fill the bowl full of baking soda. Place the bowl in the area you'd like to dehumidify. The baking soda will harden as it absorbs moisture, and at that time, you'll want to replace it with fresh baking soda.

How long does it take for baking soda to absorb moisture? ›

The longer you let the soda sit, the better. At an absolute minimum it should be left for 30 minutes. By doing this, the baking soda will absorb the moisture and odours embedded in the mattress.

What to do if your house is very humid? ›

Use exhaust fans in bathrooms and kitchens to remove moisture to the outside (not into the attic). Vent your clothes dryer to the outside. Turn off certain appliances (such as humidifiers or kerosene heaters) if you notice moisture on windows and other surfaces.

Why won't my humidity go down? ›

High humidity in a house can be caused by many things, but the biggest reason is poor ventilation—in other words, air isn't being circulated properly, which causes the air in your house to become stagnant and humid. The other major reason? Too much air exchange with the outside.

How do I set my AC to dehumidify? ›

Make sure your thermostat fan setting is on the “auto” position instead of “on.” Your AC system will run the fan only when necessary to keep your indoor air temperature at the level you choose. It will also let the condensation that collects on the evaporator coil to drain out of the unit as intended.

What humidity does mold grow in? ›

Relative humidity greater than 60 percent is likely to result in condensation in the building, which can lead to mold growth.

What causes high humidity in a house? ›

What causes high humidity in a house? High humidity in a house can be caused by many things, but the biggest reason is poor ventilation—in other words, air isn't being circulated properly, which causes the air in your house to become stagnant and humid. The other major reason? Too much air exchange with the outside.

Why is my house so humid with the AC on? ›

As dirt and dust build up within the air filters, your AC cannot disperse hot air through the outdoor vents, leading to an accumulation of hot, muggy air. Therefore, it's crucial to ensure that your HVAC system has clean filters to cool air and avoid high levels of humidity properly.

What happens if humidity is too high in house? ›

High humidity over 60% can encourage mold and mildew, and damage furniture, wallpaper, paintwork, floors, and brickwork. To help combat high humidity problems, heat your home properly, use ventilation, and keep moisture-creating activities to a minimum.

Does opening windows reduce humidity? ›

Even if it's humid outside, opening the windows can help dehumidify your home since moving air will discourage moisture-filled air from settling in your home. Open windows can be especially helpful in dehumidifying moisture-prone areas like your kitchen and bathrooms.

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