How To Clean A Dehumidifier?

September 12, 2023 by Marjorie R. Rogers, MA (English), Certified Consultant

To clean a dehumidifier, start by turning it off and unplugging it, then remove and clean the filter. Wipe down the exterior with a damp cloth and clean the water reservoir with a mixture of water and vinegar.

(22 words) A dehumidifier helps to eliminate excess moisture from the air, preventing mold and mildew growth. However, improper maintenance can compromise its effectiveness. Regularly cleaning your dehumidifier is crucial to ensure optimal performance. We will guide you on how to clean a dehumidifier properly to extend its lifespan and maintain a healthy home environment.

Following these steps will help you keep your dehumidifier clean and efficient. Let’s dive in! (70 words)

Importance Of Regular Cleaning

Regular cleaning of your dehumidifier is crucial to maintain its efficiency and prolong its lifespan. Follow these simple steps to effectively clean your dehumidifier and prevent the buildup of mold and bacteria.

Regular cleaning of a dehumidifier is essential to ensure optimal performance and maintain a healthy environment. Neglecting to clean your dehumidifier can lead to various issues such as the growth of mold and mildew, poor air quality, and decreased performance.

Let’s explore these points in more detail:


Prevents Mold And Mildew Growth

  • Regular cleaning helps prevent the growth of mold and mildew inside the dehumidifier.
  • Mold and mildew thrive in damp environments, making dehumidifiers a perfect breeding ground.
  • Cleaning the dehumidifier removes excess moisture and any accumulated mold or mildew, preventing their spread throughout the room.
  • By eliminating mold and mildew growth, you can reduce the risk of associated health problems like allergies and respiratory issues.

Improves Air Quality

  • Cleaning your dehumidifier regularly improves the air quality in your home or office.
  • As the dehumidifier removes excess moisture from the air, it also collects dust, allergens, and other particles.
  • Over time, these particles can accumulate and hinder the dehumidifier’s efficiency.
  • Regular cleaning helps remove these particles, ensuring that the dehumidifier can continue operating effectively.
  • By maintaining clean air, you can breathe easier, reduce the risk of allergies, and improve overall indoor air quality.

Enhances The Dehumidifier’S Performance

  • Regular cleaning plays a significant role in enhancing the performance of your dehumidifier.
  • Dust, dirt, and debris can accumulate on the filters and other components of the dehumidifier, affecting its efficiency.
  • Cleaning the filters and other parts helps remove these obstructions, allowing the dehumidifier to function optimally.
  • An efficiently operating dehumidifier will extract excess moisture more effectively from the air, preventing any potential damage to your home or belongings.
  • Furthermore, a clean dehumidifier may consume less energy, leading to potential cost savings in the long run.

By diligently cleaning your dehumidifier, you can prevent mold and mildew growth, improve air quality, and enhance its overall performance. Regular maintenance ensures that your dehumidifier remains a reliable appliance that creates a comfortable environment while promoting healthy living.

Cleaning The Exterior

To clean a dehumidifier, start by unplugging it and removing the water tank. Use a soft cloth or brush to wipe the exterior, and a vacuum with a brush attachment to clear any dust or debris from the vents. Finally, replace the water tank and plug the dehumidifier back in.

Of Your Dehumidifier

When it comes to maintaining your dehumidifier, it’s important not to forget about cleaning its exterior. Dust, dirt, and grime can accumulate on the surface over time, affecting not only its appearance but also its performance. In this section, we will discuss the steps to properly clean the exterior of your dehumidifier and ensure its longevity.

Switching off and unplugging:

  • Before starting the cleaning process, make sure to switch off your dehumidifier and unplug it from the power source. This ensures your safety and prevents any electrical accidents.

Wiping the exterior with a damp cloth:

  • Take a damp cloth and gently wipe the exterior of the dehumidifier. This helps to remove any dust or dirt particles that may have settled on the surface. Ensure that the cloth is not dripping wet to avoid any damage to the unit.

Paying attention to vents and grills:

  • While cleaning the exterior, pay special attention to the vents and grills of your dehumidifier. These areas are prone to accumulating dirt and debris, which can impact the airflow and performance of the unit. Use a soft brush or a cotton swab to clean these areas thoroughly.

Keeping the exterior of your dehumidifier clean is as important as maintaining its internal components. By following these simple steps, you can ensure that your dehumidifier not only looks good but also operates efficiently. Regular cleaning of the exterior will contribute to the optimal functioning and longevity of your dehumidifier.

So, don’t overlook this important step in the cleaning process.


Cleaning The Water Tank

Regular cleaning of your dehumidifier’s water tank is essential for optimal performance. In just a few simple steps, you can keep your dehumidifier clean and functioning efficiently.

To ensure your dehumidifier functions efficiently, it is crucial to clean the water tank regularly. Follow these steps to clean the water tank effectively:

Emptying And Rinsing The Water Tank:

  • Turn off the dehumidifier and unplug it from the power source.
  • Carefully remove the water tank from the unit.
  • Pour out the collected water into a sink or drain.
  • Rinse the tank with warm water to remove any remaining residue.
  • Use a soft cloth or sponge to wipe away any dirt or grime.

Using Mild Detergent Or Vinegar Solution For Stubborn Stains:

  • If there are stubborn stains in the tank, fill it with a solution of warm water and a mild detergent or vinegar.
  • Let the solution sit in the tank for a few minutes to loosen the stains.
  • Scrub the interior of the tank with a soft brush or sponge.
  • Rinse the tank thoroughly with warm water to remove any soap or vinegar residue.

Thoroughly Drying The Tank Before Reassembly:

  • After cleaning, make sure to dry the tank completely.
  • Wipe the interior with a dry cloth or allow it to air-dry for a few hours.
  • Pay close attention to any corners or crevices where moisture may be trapped.
  • Ensure that no moisture is present before reassembling the dehumidifier.

Remember, maintaining cleanliness in the water tank will prevent the growth of bacteria or mold, ensuring that your dehumidifier functions optimally for a long time. By following these simple steps, you can keep your dehumidifier running efficiently and maintain a healthy indoor environment.

How To Clean A Dehumidifier?


Cleaning The Filters

To clean a dehumidifier, start by turning off the unit and unplugging it. Then, remove the filters and gently vacuum or rinse them. Allow the filters to dry completely before putting them back in the dehumidifier. Regularly cleaning the filters helps maintain optimal performance and prolongs the lifespan of your dehumidifier.

Removing And Examining The Filters

When it comes to cleaning your dehumidifier, one of the most crucial steps is to remove and examine the filters. These filters play a vital role in trapping dust, dirt, and other particles from the air, ensuring that the air released by the dehumidifier is clean and fresh.

Here’s how you can remove and examine the filters:

  • Begin by locating the filter compartment. The compartment is typically located at the front or top of the dehumidifier.
  • Once you’ve located the compartment, carefully open it. Some dehumidifiers may have latches or buttons to release the compartment, while others may simply require a gentle pull.
  • Take out the filters from the compartment. Most dehumidifiers have two filters – a pre-filter and a main filter. Pay attention to the order in which you remove them to ensure proper reinsertion later.
  • Take a closer look at the filters. Check for any visible dirt, dust, or debris. Examine them for signs of damage, such as tears or clogs, which may affect their efficiency. This step is crucial as it allows you to assess the condition of the filters and determine if they need cleaning or replacement.

Vacuuming Or Washing The Filters

After examining the filters, it’s time to clean them. Depending on the type of filters your dehumidifier uses, you can either vacuum or wash them. Here’s how:

  • For pre-filters, using a vacuum cleaner with a brush attachment is usually sufficient. Gently run the brush attachment over the filter surface to remove any dust or debris. Vacuuming helps to prolong the lifespan of the filters and prevent clogs.
  • For main filters, such as HEPA filters, washing is generally recommended. Carefully rinse the filters under running water to remove any accumulated dirt. Use a mild detergent if necessary to get rid of stubborn stains. Make sure to follow the manufacturer’s instructions regarding washing and drying the filters.
  • Allow the filters to dry completely before reinserting them into the dehumidifier. This step is important to prevent mold or mildew growth. Air-drying the filters is usually the safest option, but if you’re in a hurry, you can use a fan or dryer on a low setting.

Replacing Or Reinserting The Filters

Once the filters are cleaned and dried, it’s time to either replace or reinsert them into the dehumidifier. Here’s how to do it:

  • If the filters are damaged or too worn out, it’s best to replace them with new ones. Refer to your dehumidifier’s manual or contact the manufacturer to find the correct filters for your model. New filters ensure optimal performance and maintain better air quality.
  • If the filters are still in good condition, carefully reinsert them into the filter compartment. Make sure to align them properly, following the correct order of placement. Ensure that the filters are securely in place before closing the compartment.
  • Finally, close the filter compartment securely to prevent any air leaks. A properly sealed filter compartment ensures that the air is properly filtered, improving the efficiency of your dehumidifier.

Regularly cleaning and maintaining the filters of your dehumidifier not only ensures cleaner air but also helps prolong the lifespan of your unit. By following these simple steps, you can keep your dehumidifier running smoothly and efficiently.

Frequently Asked Questions Of How To Clean A Dehumidifier?

How Do You Clean And Disinfect A Dehumidifier?

To clean and disinfect a dehumidifier, follow these steps: 1. Unplug the dehumidifier and remove any filters or trays. 2. Wipe down the exterior with a damp cloth and mild detergent. 3. Use a brush or vacuum to remove dust and debris from the coils and vents.

4. Mix a solution of equal parts water and vinegar. 5. Apply the vinegar solution to the surfaces of the dehumidifier using a cloth or sponge. 6. Allow the solution to sit for 10-15 minutes to disinfect. 7. Rinse the surfaces with clean water and wipe dry.

8. Clean or replace the filters and trays before reinstalling them. 9. Plug in the dehumidifier and set it to your desired settings. Regular cleaning and disinfecting of your dehumidifier will help maintain its efficiency and prevent the buildup of mold and bacteria.

Remember to consult your user manual for any specific cleaning instructions.

Do Dehumidifiers Need To Be Cleaned?

Yes, dehumidifiers need to be cleaned regularly to maintain their efficiency and effectiveness. Over time, dust, dirt, and mold can accumulate on the coils and filters of the dehumidifier, which can hinder its performance. Cleaning the dehumidifier ensures that it operates optimally and removes excess moisture from the air.

To clean the unit, first, turn it off and unplug it from the power source. Use a damp cloth or sponge to gently wipe down the exterior surfaces. Next, remove and clean the air filter according to the manufacturer’s instructions.

It is important to replace or clean the filter regularly to prevent mold and bacteria buildup. Finally, carefully clean the coils using a vacuum cleaner or a soft brush to remove any dust or debris. Regular cleaning of your dehumidifier will help prolong its lifespan and maintain its functionality.

How Do You Clean Mold Out Of A Dehumidifier?

To clean mold from a dehumidifier, follow these steps. Firstly, unplug and turn off the dehumidifier. Then, remove the water collection bucket and filter. Next, use a mixture of water and white vinegar to scrub the affected areas, including the bucket, filter, and interior surfaces.

For tough mold, you can add baking soda to the vinegar solution. After scrubbing, rinse everything thoroughly with clean water. To prevent future mold growth, wipe the dehumidifier dry and let it air out in a well-ventilated area. Finally, reassemble the unit and plug it back in.

Regular cleaning and maintenance will help keep your dehumidifier mold-free. Remember to follow the manufacturer’s instructions for proper care.

What Is The Brown Stuff In My Dehumidifier?

The brown stuff in your dehumidifier is most likely mold or mildew. These fungi thrive in damp environments like dehumidifiers and can cause health issues if left untreated. To prevent mold growth, regularly clean and disinfect your dehumidifier according to the manufacturer’s instructions.

Remove and wash any filters or trays and ensure they are completely dry before reassembling the unit. Additionally, keep your dehumidifier in a well-ventilated area and maintain a humidity level below 50% to discourage mold growth. If you notice a strong musty odor or excessive mold growth, it may be necessary to consult a professional for further assistance.

Regular maintenance and proper cleaning will keep your dehumidifier functioning effectively and ensure a healthy indoor environment.



To summarize, keeping your dehumidifier clean is essential for its proper functioning and longevity. Regular maintenance not only removes dirt and debris but also prevents mold and mildew growth, ensuring healthy air quality in your home. Start by unplugging the dehumidifier and carefully cleaning the filter with a soft brush or vacuum.

Wipe down the interior and exterior surfaces with a damp cloth, and pay special attention to the water collection bucket. Use a mixture of water and vinegar to remove any stubborn mineral deposits. Finally, allow the dehumidifier to dry completely before plugging it back in.

By following these simple steps, you can extend the lifespan of your dehumidifier and enjoy the benefits of cleaner, fresher air in your home.

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About Author (Marjorie R. Rogers)

The inspiring mum of 6 who dedicates her time to supporting others. While battling with her own demons she continues to be the voice for others unable to speak out. Mental illness almost destroyed her, yet here she is fighting back and teaching you all the things she has learned along the way. Get Started To Read …