Replacing Blueair Filter – How To Guide

Air purifier filters trap dust, debris, and particles as the air passes through them. To keep the air clean and your filter running efficiently, you need to change them often. If you prefer using Blueair in your home, do you know how to change the filters? We've researched this topic to guide you on how to do just that.

Blueair air purifier units are available in different models that you can use in small, medium, or large spaces. The steps for replacing the filters for the three Blueair models below include:

  • Blue Pure 211 
    • Switch off and unplug.
    • Remove the top cover.
    • Remove the old filter and replace with a new one.
    • Plug back and switch on.
    • Reset it.
  • Blue Pure 411
    • Unplug and turn off.
    • Twist off the top cover.
    • Remove the fabric pre-filter and the inner filter.
    • Replace the inner filter.
    • Put back the pre-filter.
    • Plug, turn on, and reset.
  • Classic 605
    • Switch off and unplug.
    • Open the top.
    • Remove all three filters and replace them with new ones.
    • Place back the top.
    • Plug back, switch on, and reset.

Keep reading as we discuss these three Blueair models and how to change their filters. Find out how often you need to change the filters, and what happens when you don't. You'll also learn about the problems associated with the filters and what to do.

How To Replace The Blueair Filter

The Blueair air purifiers come in different models that purify different sizes of rooms. Purifiers like the Blue Pure 211 are suitable for small rooms between 100 and 200 square feet. 

Blue Pure 411 is one of the models that are suitable for medium rooms between 200 and 600 square feet. The Classic 605 or 680i are best for larger rooms that are between 600 and 1000 square feet. 

The filters in these Blueair purifier models are replaced in different ways as explained below:

Blueair Blue Pure 211

This is a filter on Amazon suitable for Blueair Pure 211.

The steps to replace the filter for the Blue Pure 211 are:

  1. Switch off and unplug the appliance.
  2. Pop the top off.
  3. Remove the old filter. 
  4. Remove the new filter from the plastic bag. The outside of the filter looks like an HVAC filter, and the inside is carbon. 
  5. Put in the new filter into the appliance.
  6. Plug back the unit and switch it on.
  7. Reset it. 

Check out the video below that visually explains the steps above about how to change the filter:

Blueair Blue Pure 411

You can find this filter suitable for Blue Pure 411 on Amazon.

Replacing the filter for the Blue Pure 411 is easy. The steps include:

  1. Unplug the appliance.
  2. Twist and remove the white top and ring. 
  3. Remove the outer gray fabric pre-filter to reveal the inner filter.
  4. Remove this inner filter and replace with a new filter.
  5. Put back the white ring and slide back the white top.
  6. Put back the fabric pre-filter
  7. Plug and switch on the appliance.
  8. Reset it.

Check out the video below that explains the steps above:

Blueair Classic 605

Check out this HEPA filter set on Amazon that is suitable for Blueair air purifier.

If you want to replace the Blueair Classic 605 filters, follow the steps below:

  1. Unplug and switch off the unit.
  2. Open the top.
  3. Remove all three filters, one on top and one on each width side.
  4. Take your new filters and insert them, ensuring they face the correct direction. 
  5. Place back the top.
  6. Plug back and switch it on.
  7. Reset the filter timer.

The video below explains the steps above:

How Often Should You Change The Filter?

Hands changing hepa purifier filters

Blueair advises you to change your filter at least once every six months. However, you can change them as often as you see fit, especially if you live in a dusty area. The unit has a filter replacement indicator that lights up when the filter needs to be replaced.  

It’s important to note that you cannot wash or clean the filters. You can only replace them. But, the fabric pre-filters can be vacuumed or washed together with your laundry. 

And, when the filter light remains red even after replacing the filter, you need to reset the appliance. To reset, press the filter button and hold it down between 5 and 30 seconds. When the light turns from red to blue, you have successfully reset your appliance.

The video below shows you how to reset your appliance:

Air Purifier Filter Problems And How To Troubleshoot

Air purifier on wooden floor in comfortable home

The filter can be the cause of some problems in your air purifier. The information below discusses some of these problems and how to troubleshoot them:

Unusual Noises

Don't ignore any strange noises coming from your appliance. To check what is wrong, turn it off and open it. The most common cause is an incorrectly installed air filter. First, check for any damages, and if there are none, re-install it correctly. If it has any damage, replace it immediately.

Dusty Air

The air filter works by blocking out dirt, dust, and debris so that your air purifier can produce clean air. But, if the quality of the air is not clean, have a look at the filters. Dirty filters can compromise the quality of the air you breathe. That is why you need to replace the filters often, as well as regularly wash the pre-filter. 

Improper Air Flow

If there isn’t a proper flow of air, you might have forgotten to remove the filter packaging. Open the unit, and remove the packing from the filter. 

In addition to this, you may have to check the fan. Increase the speed of the fan if it is low. If the airflow is still not good enough, place it in an area with enough clearance around it. 

How The Air Purifier Improves The Quality Of Air Around You

Air purifier a living room

Air purifiers improve the quality of air to reduce health issues, remove odors, and help you sleep better. The ways your purifier does this is by:

Having More Than One Filter

Some purifiers can have two to four filters that can clean the air more thoroughly. Some catch the big particles, and others trap the finer particles.

However, most have two filters, like the Blue Pure 211, which has a HEPA filter that traps particles such as pollen, spores, and large dust particles. Inside it, is an activated carbon mesh that traps harmful chemical odors or prevents off-gassing coming from volatile organic compounds. 

By Capturing MPPS

The HEPA (High-Efficiency Particulate Air) filter is important because it filters the MPPS (the most penetrating particle-size particles). The MPPS are the particles that can penetrate your airway walls, causing illnesses.

If you suffer from ailments such as allergies or asthma, a purifier with a HEPA filter can help ease the symptoms.

By Trapping The Tiniest Particles

This is a Blueair purifier suitable for large rooms that you can find on Amazon.

Some of the highest-quality air purifiers can trap particles that are small as 0.1 microns. The coronavirus fits into this category since it has a diameter of 0.1 microns. This virus attaches itself to the respiratory droplets in the air. An air purifier cannot trap the virus, but at least it can catch the droplets.

There are many other tiny viral particles in the air such as mold spores and bacteria. Some of these are not harmful. However, if you are exposed to them for a long time, they can end up causing health problems. 

Additional Ways To Improving Quality Of Air Indoors

Your air purifier will work more efficiently when you regularly change the filters. If you don’t do this or change them as per the required schedule by the manufacturer, you may not experience the benefits of an air purifier. 

Other steps that you can add to improve the quality of air include:

Additional ways to improving quality of air indoors

  • To prevent the buildup of allergens, vacuum the carpet and clean the floor at least once a week.
  • Indoor plants can help filter the air naturally. 
  • Use a dehumidifier to minimize the growth of mold and mildew. 
  • When you are not using your appliance, open the windows to allow fresh air into your home. 

In Closing

Air purifier in the room

An air purifier is an appliance that you can find in many homes. It cleans the air, and as a result helps you sleep better, improves any ailments you may have, and reduces allergies. But, for your purifier to work optimally, you will need to change the filters often or as per the manufacturer's schedule.

There are problems that can arise if the air filter is clogged or not installed properly. However, you can troubleshoot these and other problems coming from the filter. 

Learn more about resetting the filter light and the lifespan of a HEPA filter in these informative posts:

Reset Blueair Filter Light

How Long Does A Hepa Filter Last

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