Do you dread those musty and damp spaces in your home? Do you feel like you’re constantly battling mold and mildew growth on your walls and furniture? If so, a dehumidifier may be the solution you’ve been searching for. But where should you put it? Proper placement is key to maximizing its performance and ensuring that you reap all the benefits. In this article, we’ll guide you through the best places to put a dehumidifier in your house. Say goodbye to excess moisture and hello to a fresh and dry living space.

1. Understanding The Need For Dehumidifiers In Your Home

Dealing with excessive moisture in your house can quickly become a nightmare. Unfortunately, many homes experience this problem, which results in mold, mildew, and other harmful pollutants. Not only does moisture ruin your home’s interior, but it also affects your health. Humidity makes you feel hot and uncomfortable, encourages the growth of bacteria and dust mites, and causes allergies and respiratory problems.

One of the best ways to tackle the moisture problem in your home is by using a dehumidifier. A dehumidifier is an appliance that reduces the level of humidity in the air, making your home comfortable and dry. It works by taking in moist air, then removing the moisture from the air using a fan and cooling coils, then expelling the dry air back into the room. Dehumidifiers are highly effective in preventing mold and mildew growth, improving air quality, and protecting your home and family.

Before you go out and buy a dehumidifier, it’s crucial to understand why you need one. You should assess your home’s humidity levels and determine if you need a dehumidifier. The best way to know if your home has too much moisture is by checking for signs such as condensation on windows, a musty odor in your home, discolored patches on walls, and peeling paint. If you notice any of these signs, then it’s time to get a dehumidifier.

2. Factors To Consider Before Placing A Dehumidifier

A dehumidifier can be a lifesaver in a damp and humid home. Before you purchase one, consider these important factors to ensure optimal performance and avoid any potential problems.

2.1 Room Size

The size of the room you want to dehumidify is an important factor to consider. You’ll need to make sure your dehumidifier is powerful enough for the space you want to use it in.

As a general rule of thumb, a 50-pint dehumidifier can cover a room up to 2,500 square feet, while a 70-pint dehumidifier can cover a room up to 3,500 square feet. If you have a larger space, you may need multiple dehumidifiers or a commercial-grade one.

2.2 Moisture Level

If your home is extremely damp, it’s essential to choose a dehumidifier with a high level of moisture removal. However, if the moisture level is relatively low, you can choose a smaller dehumidifier.

A hygrometer can help you determine the humidity level in your home. The ideal range is between 30% to 50% humidity. Anything over 60% is considered too high and can lead to mold and mildew growth.

2.3 Noise Level

If you’re planning to use the dehumidifier in a bedroom or other living spaces, noise level can be an important factor to consider. Some units can be quite noisy and disrupt sleep or relaxation, while others are very quiet.

When shopping for a dehumidifier, look for models that have a decibel (dB) rating that is 60 dB or less. This level of noise is similar to a conversation or low background noise.

By considering these important factors before placing a dehumidifier in your home, you can ensure optimal performance and avoid any potential problems.

3. Finding The Humid Areas In Your House

Before you place your dehumidifier in your home, it’s important to assess where the most humid areas are so you can optimize its performance. Here are some key areas to check for high humidity levels:

1. Bathrooms: Bathrooms are a natural source of moisture because of the frequent use of hot water. If not ventilated properly, excess humidity can accumulate in the room and lead to mold growth and mildew smell.

2. Kitchens: Kitchens can be another source of moisture. Boiling water, washing dishes, and cooking can all create steam that can get trapped in the kitchen without proper ventilation.

3. Basements: Basements are notoriously prone to high humidity levels due to their location below ground and lack of airflow. This can result in mold and mildew growth, dampness, and musty odors in your basement.

4. Closets and Cabinets: These areas tend to have poor ventilation, which can lead to stagnant air and increased moisture. This can cause clothes to smell musty and lead to mold and mildew growth in your closet or cabinets.

Once you have identified the places with the highest humidity levels, you can then place your dehumidifier in the most effective location to combat the excess moisture.

4. Best Locations To Place A Dehumidifier For Maximum Efficiency

Where Is The Best Place To Put A Dehumidifier In Your House?

If you want your dehumidifier to work efficiently, you need to place it in the right spot. Here are some of the .

1. Basements: Basements tend to be the most humid areas in any house, and dehumidifiers work best in this environment. Place the dehumidifier in the middle of the room, away from walls or corners, to allow free air flow and optimal performance.

2. Laundry Rooms: Laundry rooms are notorious for trapping moisture due to the presence of water in the washing machine. A dehumidifier in this location can prevent mold and mildew from forming on your clothes, and it will also keep the room dry and comfortable.

3. Bedrooms: Bedrooms are a good place for dehumidifiers if someone in the household suffers from allergies or asthma. This is because dust mites, which thrive in humid environments, can trigger these conditions. Place the dehumidifier at least six feet away from the bed for maximum effectiveness.

4. Closets: Closets are small spaces that tend to trap moisture, leading to the formation of mold, mildew, and musty smells. Placing a small dehumidifier in your closet can help keep your clothes and shoes in good condition.

Remember to read the manufacturer’s instructions on where to place your specific dehumidifier for maximum efficiency.


Placing a dehumidifier in the right location is essential for optimal performance. Consider the various factors before choosing a location for your dehumidifier and select the most suitable one. By following these tips, you can ensure that your home is free from excess humidity, mold, and allergens.

5. Maintenance Tips For Your Dehumidifier

Maintaining your dehumidifier can help ensure that it works efficiently and effectively. Here are some tips to help you get the most out of your dehumidifier:

  • Clean The Filters Regularly: Your dehumidifier filters out impurities from the air and over time they can get clogged. Clean the filters regularly to keep them in top condition.
  • Empty The Water Tank Frequently: Dehumidifiers extract water from the air and store it in a tank. Make sure to empty the tank regularly, especially during humid seasons.
  • Check The Hose And Drain Tube: If your dehumidifier comes with a hose or drain tube, ensure that it is working well, without any leaks or clogging, to ensure proper drainage of water.
  • Wipe The Exterior: Occasionally wipe down the exterior of the dehumidifier to remove any dust or dirt. This not only keeps it clean but also helps it perform better.
  • Inspect The Cord And Plug: Check the power cord and plug regularly for any damage. Never touch the cord or plug with wet hands and keep the unit away from water sources to avoid electrical hazards.

By following these simple maintenance tips, you can help extend the life of your dehumidifier and get the most out of it. It is important to read and follow the manufacturer’s instructions for specific maintenance guidance.

6. Choosing The Right Size And Capacity For Your Home

When buying a dehumidifier, it’s essential to consider the size and capacity that will be best suited for your home. A dehumidifier’s size and capacity refer to the amount of moisture it can remove from the air in a given period.

Factors to Consider

  • The size of the room: Dehumidifiers come in different sizes, and larger units are ideal for more spacious rooms, while smaller ones work best for smaller spaces.
  • The level of humidity: Areas with high levels of humidity require larger capacity dehumidifiers to remove the excess moisture effectively.
  • The number of occupants: More people in a room means more moisture and, consequently, require larger capacity dehumidifiers.

When shopping for a dehumidifier, check the specifications to ensure it’s ideal for the size of your room and the level of humidity. A dehumidifier that’s too small for the space will not work efficiently, while one that’s too large will use excessive energy and reduce its lifespan.

Calculating The Appropriate Capacity

The capacity of a dehumidifier is measured in pints per day (PPD). A PPD refers to the amount of moisture the unit can remove from the air in 24 hours. To calculate the appropriate capacity for your room, use the following rule of thumb:

For every 500 square feet of space, you’ll need a 10-pint capacity dehumidifier for moderate humidity levels. If the level of humidity is high, increase this number by 1 pint, while for areas with low humidity, you can decrease it by 1 pint.

Therefore, a 1500 square feet basement with high humidity would require a 35-pint capacity dehumidifier. It’s crucial to note that this formula only serves as a guideline, and you should consult the manufacturer’s recommendations for optimal performance.

7. Final Thoughts On Optimizing Your Dehumidifier’s Performance

In conclusion, placing a dehumidifier in the right location is crucial for efficient air moisture control in your home. You should identify the most humid areas of your home, such as the basement, laundry room, or bathrooms, and position the dehumidifier in a central location within the room.

Also, you need to ensure that the dehumidifier is well-maintained by regularly cleaning its filters, removing any accumulated water in the reservoir, and preserving its optimal performance by storing it properly during the off-season.

Furthermore, choosing the right size and capacity is essential. You can consult with an expert or use a sizing calculator to determine the appropriate dehumidifier size that matches your house’s square footage and moisture level.

Remember, your ultimate goal is to maintain an ideal relative humidity level between 30-50% to ensure a comfortable and healthy living environment. So, use these tips to optimize your dehumidifier’s performance and achieve your desired humidity level in your home.

People Also Ask

1. Should I put a dehumidifier upstairs or downstairs?

It depends on where you experience the most humidity. If your basement is damp, then it’s best to put the dehumidifier downstairs. If your bedrooms feel stuffy and humid, then it’s best to put the dehumidifier upstairs.

2. Can a dehumidifier be placed in a closet?

Yes, you can place a dehumidifier in a closet. However, make sure that there is enough space for air circulation and that the closet is not too tightly sealed as this can hinder the dehumidifier’s performance.

3. Is it better to put a dehumidifier near a window?

No, it is not recommended to place a dehumidifier near a window as it can draw in warm, humid air from outside, which can decrease its effectiveness. It’s best to place the dehumidifier in a central location away from windows.

4. Should a dehumidifier be placed on a carpet?

No, it is not recommended to place a dehumidifier on a carpet as it can restrict air flow and cause overheating. It’s best to place the dehumidifier on a hard, flat surface.

5. Can a dehumidifier be placed in a crawl space?

Yes, a dehumidifier can be placed in a crawl space to reduce excess moisture. However, it’s important to choose a dehumidifier that is specifically designed for crawl spaces and can operate in a low-temperature environment.


When it comes to placing a dehumidifier, it’s important to consider the most humid areas in your home and choose a location that is central and away from windows. Additionally, it’s best to place the dehumidifier on a hard, flat surface and ensure that there is adequate air circulation. By following these guidelines, you can effectively reduce excess moisture in your home and improve air quality.