filter on dehumidifier

Effective Guide :how to clean filter on dehumidifier?

Keeping your dehumidifier in top working condition is crucial for extending its lifespan and maintaining its efficiency. One of the most important, yet often overlooked, aspects of dehumidifier maintenance is regularly cleaning the filter. A clean filter not only ensures that your device operates efficiently but also improves indoor air quality by preventing dust and allergens from circulating back into the room.

We'll guide you through the essential steps to effectively clean the filter of your dehumidifier. Let’s dive into the process and keep your air fresh and your unit running smoothly! If you don't want to clean the filters of your dehumidifier due to work, or if you are busy, you can click to buy our filters!

A Closer Look at Dehumidifier Types and Filters

Before you start cleaning the filter of your dehumidifier, it's important to know the specific type of dehumidifier you own and the kind of filter it uses. Dehumidifiers can vary widely in design and functionality, and so do their filters.

Types of Dehumidifiers and Filters

  • Refrigerator Dehumidifier: Common in residential settings, these use cold coils to condense moisture from the air. Filters in these units typically capture airborne particles before they reach the cooling coils.
  • Desiccant DehumidifiersOften used in colder climates or for industrial purposes, these dehumidifiers use a chemical to absorb moisture from the air. Their filters prevent dust and debris from contaminating the desiccant material.
how to clean filter on alorair dehumidifier

Importance of the User Manual

Always refer to the user manual specific to your model for detailed instructions on maintenance practices, particularly for cleaning the filter. The manual will provide:

  • The specific location of the filter in your unit.
  • Recommendations for cleaning products and methods suited to your particular model.
  • Safety precautions to ensure that you do not damage the filter or other components of the dehumidifier during cleaning.

Signs That Your Filter Needs Cleaning

Knowing when to clean the filter can help prevent issues and ensure your unit operates optimally. Here are some common signs that indicate it’s time to clean the filter in your dehumidifier:

Reduced Efficiency

If you notice that your dehumidifier is running longer than usual but isn’t extracting as much moisture from the air, it might be due to a clogged filter. A dirty filter restricts airflow, making the unit work harder to achieve the same results, which can also lead to increased energy consumption.

Unusual Odors

A musty or burning smell coming from your dehumidifier is a clear indicator that the filter may be clogged with dust, mold, or other debris. These odors arise because the air cannot circulate properly, allowing bacteria and mold to build up.

Visible Dust Build-Up

Inspect the filter regularly. If you can see dust and debris accumulated on the surface, it’s time for a cleaning. Regular checks will help you maintain better air quality and unit efficiency.

Allergy Symptoms

An increase in allergy symptoms such as sneezing, coughing, or respiratory discomfort while indoors can also signify that your dehumidifier's filter needs cleaning. A clean filter helps to trap allergens and prevent them from recirculating in your space.

Frequent Cycling On and Off

If the dehumidifier turns on and off more frequently than normal, this could be a sign that inadequate air is flowing through the system due to a dirty filter.

Manufacturer’s Recommendations

Lastly, follow the manufacturer’s guidelines on how often to clean the filter, which is typically every 250-350 hours of use, or as indicated for your specific model.

Step-by-Step Guide to Cleaning the Filter

Keeping your dehumidifier’s filter clean is essential for optimal performance and air quality. Here’s a comprehensive step-by-step guide to help you effectively clean the filter.


Before you begin, ensure you have the following items on hand:

  • Soft brush
  • Vacuum cleaner with a brush attachment
  • Mild soap
  • Warm water
  • A clean, dry cloth or towel for drying

Safety Tip: Always unplug the dehumidifier from the power source before attempting any maintenance.

Cleaning Process

Step 1: Remove the Filter

Carefully remove the filter from the dehumidifier according to the manufacturer's instructions. Most filters are located behind a cover on the back or side of the unit, which may snap off or require screws to be removed.

Step 2: Vacuum the Filter

Using the brush attachment on your vacuum cleaner, gently vacuum the filter to remove any loose dust, dirt, and debris. This step helps clear away the bulk of the particulate matter without wetting the filter.

Step 3: Wash the Filter

If your dehumidifier’s filter is washable (check your manual to be sure), prepare a mild soapy water solution and gently clean the filter. Use a soft brush to lightly scrub any stubborn areas of dirt or mold. Avoid using harsh chemicals or heavy scrubbing tools that can damage the filter.

Step 4: Rinse the Filter

Thoroughly rinse the filter under running warm water to remove any soap residue. Make sure the water runs clear before finishing.

Step 5: Dry the Filter

After rinsing, allow the filter to air dry completely in a well-ventilated area. The filter must be fully dry to prevent mold and mildew from forming when it is placed back into the unit.

Aftercare and Reinstallation

Once the filter is completely dry, reinstall it into the dehumidifier following the reverse of the removal instructions. Ensure it fits snugly in place without any gaps around the edges where air might bypass the filter.

Final Check:

Plug the unit back in and turn it on to make sure everything is working correctly.

Regular Maintenance Tips

While cleaning the filter is crucial, maintaining the overall health of your dehumidifier involves several other practices. Here are some tips to ensure your dehumidifier continues to operate efficiently and effectively:

Inspect and Clean Other Components

  • Coils: Check the condenser and evaporator coils for dirt and debris. Clean these with a soft brush or a cloth. If you notice ice buildup, it might be a sign of a problem such as low refrigerant levels or poor airflow.
  • Water Reservoir: Regularly clean the water collection reservoir to prevent mold and mildew growth. Use a mild detergent and rinse thoroughly after cleaning.
  • Airflow Pathways: Make sure that the air intake and exhaust ports are free from obstruction and clean them as needed to maintain proper airflow.

Check for Leaks and Damages

Inspect the unit for any signs of leaks or damage, especially if the dehumidifier is not performing as expected. Leaks can occur in older units and may require the replacement of certain parts or a professional repair.

Monitor Performance

Keep an eye on the dehumidifier’s performance. If you notice a sudden drop in efficiency or if the unit stops reaching the desired humidity levels, it could indicate an issue that might need more than routine maintenance.

Schedule Professional Maintenance

Consider having your dehumidifier professionally serviced once a year, especially if it’s used in demanding environments like wet basements or industrial settings. Professional technicians can check electrical connections, refrigerant levels, and other critical components that might be beyond the scope of routine homeowner maintenance.

Replace the Filter as Needed

While regular cleaning extends the life of your filter, it will eventually need to be replaced. Follow the manufacturer’s recommendation on when to replace the filter, which is typically once a year, but this can vary based on usage and environmental conditions.


Maintaining your dehumidifier’s filter and other components is key to ensuring optimal performance and air quality in your home or office. Regular upkeep helps prevent common issues and ensures your dehumidifier is ready to tackle high humidity when you need it most.

Keep Your Air Fresh and Your Dehumidifier Effective with Abestorm

Stay ahead of humidity issues and ensure clean, healthy air in your environment by keeping your dehumidifier in top condition. For more tips on maintaining your dehumidifier or if you’re looking for reliable, high-performance dehumidifiers and accessories, explore our range at Abestorm today!

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