What to do when your Blueair air purifier has a red light

The red light on your Blueair air purifier simply indicates that you need to replace your filter and reset the indicator.

On a regular day, you may not even notice your Blueair air purifier, as it works to rid the air in your space of any unwanted and potentially harmful particles.

So it can be quite a shock to look over and find that the air purifier is suddenly displaying a bright, red light.

Fortunately, while this may seem serious, the red light on Blueair air purifiers only serve as a useful reminder that the filters in the unit have reached the end of their lifecycle.

Understanding the process

The air filter is a critical part of your Blueair air purifier, and it is the component which ensures that certain particles are filtered out as the air in your space circulates.

As a result, these filters need to be replaced every few months in order to ensure that the Blueair air purifier can work as effectively and efficiently as possible.

All you will need to do to get rid of this red light is to replace the old filters with new ones, and to reset the Filter Replacement Indicator Light on your unit (as in the process outlined below).

Replacing your air filters and resetting the Filter Replacement Indicator Light

Every Blueair air purifier model is unique, thus, it is always best to consult your user manual before you do any kind of regular maintenance on the unit.

However, the filter replacement and Filter Replacement Indicator Light reset processes are both fairly easy, and can be summarized as follows:

Part Process Description
Part 1: The filter replacement process Step 1 Turn off and unplug the unit
Step 2 Access and remove the old, used filter
Step 3 Replace this old filter with the new replacement filter (make sure that you have removed any plastic packaging and film from this filter before installing it)
Step 4 If necessary, this is the ideal time to wipe down the interior and exterior of your air purifier with a microfiber cloth and to clean the pre-filter
Step 5 Close the air purifier
Part 2: Resetting the Filter Replacement Indicator Light Step 1 Plug the unit in again and switch it on
Step 2 Press and hold the button at the center of your unit for at least seven seconds (up to 30 seconds) until the red light disappears

Differences between Blueair air purifier models

Blueair has many different air purifier models and each of these models work just a little bit differently to the next.

Some of the most common examples of the differences between the different Blueair air purifier models when it comes to the filter replacement process are:

  • The Blue Pure Auto units will display three red lights in Auto Mode, or one red light in other fan modes
  • Connected Classic units will have an orange light instead of red
  • Classic E-series units have the option to “Snooze” this timer for five days
  • Protect units’ red lights will turn off automatically after you have replaced the filter

How to find your Blueair air purifier model number

Knowing which model of Blueair air purifier you have is important, not just in terms of knowing which filter replacement and Filter Replacement Indicator Light processes you should follow, but also to make sure that you purchase the right replacement parts.

Genuine Blueair replacement filters can easily be purchased from their official Amazon store, but the tricky part is figuring out which filters will be compatible with your unit.

Fortunately, there is a way to find your Blueair air purifier’s exact model number (even if you have misplaced your used manual) and all you need to do is to search for the rating label underneath or on the back of your unit.

Your unit’s model number will be listed right below the Blueair logo.

How often do Blueair air purifiers display this red light?

Many different factors influence how quickly your Blueair air purifier filters will gather dirt.

This includes things like the frequency and intensity with which you use the air purifier, but also things which are entirely out of your control, such as the pollution in your area or the amount of pollen in the air.

As a general rule of thumb, this red, Filter Replacement Indicator Light should appear once every six months to remind you that your filter needs to be replaced.

If you want to get the best possible results from each of your filters during these six-month intervals, keeping the air purifier as clean and well-maintained as possible is a good place to start.

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