How to Clean the Honeywell Air Purifier For Best Performance?

Are you worried about how to clean the Honeywell air purifier and looking for an easy solution? Then, don’t worry! You are reading the right blog post. I have been through this overwhelming situation and I will provide you with the exact same steps that I followed to clean my purifier. So without any delays, let’s head on to the next section.

How to Clean the Honeywell 
Air Purifier?

Quick Answer

To answer quickly, here are a few steps that I followed for a swift cleaning:

  1. Disconnect and power off the device;
  2. Remove the air purifier filters;
  3. Disassemble it;
  4. Perform the cleaning and replace filters if needed.

However, these are just the basics only. Continue reading to learn about the necessary tools and the 5-step detailed installation process. Also, I’ll share some insider tips at the end, which I am sure you don’t want to miss. So, let’s get started. 

Read Also: How to Clean An Air Purifier Filter: 2 Easy Hacks to Know

Important Equipment and Supplies Listed

For a successful and seamless cleaning operation, gathering the required tools and equipment is crucial before you start the cleaning process.

Required equipment

Listed below are the supplies that I gathered for effective cleaning:

  • Vacuum Cleaner: I used a vacuum cleaner equipped with a brush attachment to clean the filter. 
  • Water: You’ll need clean, lukewarm water to rinse the filter. However, I do not recommend using hot water as it might harm the filter material. 
  • Sink or Container: You’ll need a sink or a container big enough to immerse and rinse the filter. Make sure the sink or container is clean and clear of any impurities.
  • Mild Detergent: To assist in getting rid of tough stains or residues from the filter, a gentle detergent, such as dish soap, may be utilized. If you’re not using dish soap, make sure the detergent you choose is suitable for the type of filter material.
  • Gloves: During the procedure, wearing gloves protects your hands from filth or cleaning substances. Select gloves that fit well and aren’t allergic.
  • Towel: Dry the filter using clean towels or paper towels after rinsing. Verify that the towels are spotless and devoid of any debris or lint that might go into the filter.
  • Clean Cloth: When you’re cleaning, use a tidy, lint-free cloth to clean the outside of the air purifier. By doing this, any dust or dirt gathered on the surface will be helped to disappear.

How to Clean the Honeywell Air Purifier: 6-Step Personally Tested Guide

Now, let’s head on to the main course. Here are the detailed steps that I followed for cleaning my purifier. Let’s check them out:

Step 1: Power Down The Air Purifier

Before starting the process, turning off the air purifier and unplugging it from the power source is essential for the appliance’s correct maintenance and safety. So, here’s how I did it:

  1. The first thing was finding the air purifier’s power switch. Usually, it can be found on the side of the device or the control panel. Mine was on the left side of the cover.
How to clean the Honeywell air purifier? Power Down The Air Purifier

2. Once I found the switch, I simply turned it Off. Here, I would recommend you double-check by seeing the display light, as they should also go out. 

3. Lastly, I unplugged the device from the power socket to ensure the electricity was completely cut off.

After unplugging and turning off the air purifier, you can confidently move on to the next step, removing the filter for cleaning. 

Read Also: How to Clean a Blueair Filter: 10-Step Ultimate Guide

Step 2: Taking Out the Filter

For the second step, it’s time to remove the pre-filter. This will help you thoroughly clean your filter to ensure no dirt or debris is left.

Remove the pre-filter

Here’s how I removed the Honeywell filter:

  1. Find the air purifier’s filter container. Depending on the model, the compartment’s location may vary. Mine was located on the rear side of the device.
  2. After locating the container, I opened it with caution. I just had to loosen a clip to raise the cover. As soon as the cover was raised, the filter behind it was visible. If you are also at this stage, I want you to be extra cautious, and not to break any parts. 
  3. Once the purifier cover was wide open, I looked for evidence of debris, dust, or grime on the filter. Through this evaluation, I was able to determine how much cleaning the filter requires and how unclean it is.
Taking Out the Filter
Daniel Glynde
Be cautious while taking out the filter. If you damage it, then you will be left with only one choice and that will be replacing the filter which is going to cost you extra bucks.Daniel Glynde, Tech Enthusiast and Senior Writer at Verywellhome

Step 3: Cleaning the Filter with a Vacuum

Next, I grabbed a vacuum for filter cleaning.

Cleaning the Filter with a Vacuum

Let’s see what are the steps involved: 

  1. I opt for a vacuum with a gentle brush attachment to ensure a thorough cleaning. This attachment aims to gently remove dust and particles to maintain the air purifier’s performance.
  2. When vacuuming, I placed the filter over the trash to capture any stray debris that may have fallen off.
  3. If you are also using the cleaner, I would recommend you gently vacuum the filter’s two sides using the brush attachment. Also, cover the entire surface carefully in especially filthy or congested spots.
  4. I moved the brush attachment in straight lines or small circles to remove dirt efficiently. 

Read Also: How Close Should a Humidifier Be To a Baby? 3 Safety Tips

Step 4: Rinse the Filter Thoroughly

Rinsing the filter aids in getting rid of dirt and smaller particles that might still be sticking to the surface.

Rinse the Filter Thoroughly

Following the right procedure and avoiding hot water and harsh chemicals is crucial since these could harm the filter. Here’s how I performed this step:

  1. Firstly, I placed clean, warm water in a container or sink.
  2. Then I gently lowered the filter in the water and submerged it fully to ensure every component was in contact with it.
  3. When you reach this step, I would recommend you gently stir the filter with your fingertips or a soft brush. Doing so will assist in releasing any lingering dirt or debris.
  4. For better cleaning, I also diluted the water with a tiny dish soap. You also can use a mild detergent. However, if you also want to use diluted water, make sure your detergent is safe for the type of filter material.
  5. To guarantee complete rinsing, I shook the filter in the water for a few minutes.
Important! Not all purifier air filters are the same.Before washing the filter, please make sure that it is washable. This information is usually given in the operating instructions.

Step 5: Dry the Filter Completely

This step is extremely important to save your device. From my experience, I recommend you should completely dry the filter before installing it.

Dry the Filter Completely

To dry it, take the following actions:

  1. Shake the filter gently to get rid of any extra water. The sensitive filter material may be harmed if you twist or wring the filter.
  2. To speed up the process, I used a towel to soak the excess water. But, you can also let it dry naturally by placing it under direct sunlight as the material might shrink or get damaged.
  3. Depending on the humidity level in your space, it might take a few hours to a day to dry the filter completely, so you need to be patient. 
Pro-tip: Use a fan or place the filter before a light breeze to speed up the drying process if you’re in a hurry.

Step 6: Reattach the Filter Securely

When done with the nitty-gritty steps, it’s time to reinstall your Honeywell air purifier’s filter. However, you need to replace it correctly to ensure maximum indoor air quality and proper air purifier operation.

Reattach the Filter Securely

So, here’s how I did it without any hassle: 

  1. I found the air purifier’s filter container from where I pulled out my filter and cleaned the chamber of any dust or dirt.
  2. Next, I reinstalled the filter into its compartment with gentle pressure. 
  3. When you are also done installing your filter, ensure the filter chamber is securely fastened by carefully closing it as inadequate installation may cause air leaks or lower the air purifier’s effectiveness.
Reattach the Filter Securely

Reinstalling the filter correctly means you’ve finished an essential part of the cleaning procedure. Now turn on the purifier, adjust the fan speed settings, and enjoy cleaner air.

Important! Monitoring your filter’s state regularly and changing it according to the manufacturer’s recommendations is important. Although regular cleaning can prolong the filter’s life, it will eventually need to be replaced to continue operating at its best.

To gain a better understanding, I have also added a visual guide.

YouTube video

Swapping The Filter Of Your Purifier

If your filter indicator is turned on or is damaged beyond cleaning, then it is time to opt for a replacement. I have enlisted the important steps below to successfully change the filter:

  1. Identify Your Purifier Model: Refer to your manual or check the unit to identify the specific filter model. Most Honeywell purifiers have a HEPA, PRE, or Carbon filter.
  2. Power Off and Unplug: Before starting any maintenance, ensure the air purifier is turned off and unplugged from the electrical outlet. Safety first!
  3. Access the Filter Compartment: Locate the filter compartment at the air purifier’s back or sides.
  4. Remove the Old Filter: Carefully remove the old filter from its place. Be mindful of any tabs or locking mechanisms securing the filter in position. Follow the instructions in your manual for proper removal.
  5. Install the New Filter: Unbox the new filter and place it in the same position and orientation as the old one. Ensure it fits securely and any tabs or locks are engaged. Follow any specific instructions provided with the replacement filter.
  6. Reset and Power On: Once, you are done installing the filter, plug in your purifier again. The indicator light should be turned off.

There are some replacement filters for popular Honeywell air purifier models:

Signs Your Honeywell Air Purifier Requires Cleaning

Now, I will share the most helpful tips that indicate the purifier’s cleaning.

YouTube video

Let’s check them out:

  1. Pressure Drop Across Filters: Measure the pressure drop across the filters. An increase in pressure drop indicates a higher resistance to airflow, signaling potential filter clogging.
  2. Air Quality Sensor Readings: Some advanced Honeywell air purifiers have air quality sensors. If the sensor readings show a decline in air quality despite the purifier running, it suggests decreased filtration efficiency.
  3. Fan RPM Variations: Monitor the revolutions per minute (RPM) of the purifier’s fan. Variations or decreased RPM may indicate increased resistance due to filter contamination.
  4. Filter Saturation Limits: Consult the technical specifications for your specific Honeywell air purifier model. Manufacturers often provide filter saturation limits based on particle load, and exceeding these limits affects performance.
  5. Reduced CADR (Clean Air Delivery Rate): Measure the CADR regularly. A decrease in CADR indicates a reduction in the purifier’s ability to deliver a specific volume of clean air, pointing to potential filter issues.

Is it Possible to Clean a True HEPA Filter? The Truth Unveiled

Generally speaking, you can not clean a true HEPA filter. While giving your HEPA filter a good wash might seem practical, it’s important to note that not all HEPA filters are created equal.

Is it Possible to Clean a True HEPA Filter? The Truth Unveiled

Unless explicitly labeled as “permanent” or washable filters, attempting to clean a standard HEPA filter can lead to performance degradation.

But why is this so? Let’s uncover:

  • That’s because the intricacy of a HEPA filter lies in its fiber mesh, meticulously designed to extract particles from the air.
  • Washing, tapping off excess dust, or vacuuming might give the appearance of cleanliness, but it comes at a cost.
  • Repeated washings can harm the fiber mesh, causing some fibers to break or stretch out, compromising the filter’s efficiency.

Moreover, ​​It’s not just about the fibers. The integrity of the filter’s frame is equally crucial. If the frame or the gaskets forming a seal between the frame and the mounting site are damaged, air may find alternative routes, circumventing the intended filtration process.

Note: However, if your HEPA filter is explicitly advertised as washable or permanent, there’s a chance it has been designed to withstand cleaning. However, it’s essential to recognize that washable HEPA filters lack a standardized evaluation for post-cleaning performance.

Read Also: Can You Put Essential Oils to a Humidifier? 3 Important Keys

Significance of Cleaning the Filter

The filter, the air purifier’s key component, eliminates dangerous airborne particles and raises the air standard in your house. The filter gets soiled and clogged over time as it gathers more contaminants. This accumulation impairs the air purifiers to maintain optimal performance and decreases the filter’s efficiency.

Significance of Cleaning the Filter

The following are some main reasons you must clean your filter every three to six months:

1. Better Quality of Air

Eliminating air contaminants is the main goal of an air purifier. These particles can easily recirculate into your air because a filthy filter cannot capture them efficiently. Maintaining a debris-free filter allows it to effectively collect and eliminate airborne allergens, pet dander, pollen, dust, and other pollutants.

2. Improved Airflow

An obstructed filter limits airflow, thereby diminishing the efficacy of the air purifier. As a result, your home may have stagnant spots where the cleaned air is not adequately circulated.

Restoring appropriate airflow allows the air purifier to operate at peak efficiency and disperse clean air throughout the space. This can be achieved by cleaning the filter.

3. Extended Filter Life

From my experience, I can tell you a filter that gets unclean may begin to break down or get damaged and need an early replacement. You can maintain the filter’s quality, assure its longevity, and reduce replacement expenses by cleaning it at the suggested intervals.

4. Energy Effectiveness

An unclogged filter makes the air purifier work more effectively and uses less energy. The air purifier must work harder to force air through a blocked filter, which increases energy usage. You may help save energy and enhance the air quality in your house by ensuring the filter is clean.

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How often should I clean the filter of my Honeywell air purifier? 

You should clean the filter every 3 months to get rid of potential dirt or debris. However, if you notice a decrease in performance or fan noise increases, consider cleaning it sooner. It is recommended to refer to your specific model’s manual for accurate cleaning intervals.

What is the best way to clean the filter of my Honeywell air purifier?

For the optimal cleaning process, turn off and unplug the air purifier. Then, locate and remove the filter to clean it with a vacuum brush. Moreover, if the filter is washable, rinse it with lukewarm water. Ensure it’s completely dry before reinstallation.

Can I use compressed air to clean the filter of my Honeywell air purifier?

Yes, using compressed air to clean the filter can be effective, but it’s essential to exercise caution. Ensure the air pressure is not too high, as it may damage the filter. Keep a safe distance and use short bursts of air to dislodge dust. 

How do I know when it’s time to replace the filter of my Honeywell air purifier?

Your Honeywell air purifier filter replacement light will light up when its filter needs to be changed. Also, you should consider changing the filter if you notice a decrease in airflow or an increase in noise coming from the purifier.


The final say is that how to clean Honeywell air purifier is not a difficult thing if you follow the correct guidelines. All you need to do is disconnect and turn off the purifier. Then, carefully remove the filter of your purifier and thoroughly clean it with the help of a vacuum cleaner. If your filter is washable then you can also rinse it in the lukewarm water. Once your filter is dried, install it back, and turn on your purifier.

Also, make sure to keep tabs on the performance of your unit. If you suspect any decrease in the airflow or the noise of the fan increases, it means that maybe your filter is dirty. Also, look out for the filter replacement light. Once it is lit up, I would recommend you change your filter as soon as possible for continuous optimal performance.

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