A filter replacement indicator appears on the air purifier when it is time to change filter.

Remove the used filter and replace by a new filter. On Protect air purifiers the filter light indicator disappears automatically after inserting a new Blueair filter. You do not need to, nor can, press down the filter light to reset the filter replacement indicator.​

The Protect has built-in particle, VOC, temperature and humidity sensor.

The LEFT indicator light bar on the user panel displays air quality base show the highest pollution level out of PM1, PM2.5 and PM10

The RIGHT indicator light bar on the user panel displays air quality base on VOC measurement.

The light will show one of five colors; red (very polluted), orange (slightly polluted), yellow (moderate), green (good), and blue (excellent) to indicate air quality.

The air quality LED indicator can be turned off by pressing down the setting the air purifier to Night mode, or adjusting the LED brightness setting in the Blueair app.

If you cannot connect your Protect air purifier to the WiFi via the Blueair App, please try the following steps:


Place your air purifier close to your phone and router during set up:

1. Ensure the smartphone you have the Blueair App opened on is within 3 feet (1 meter) of your air purifier and the router during set up. Once you have successfully paired your air purifier you can place it at your desired location.

2. Make sure that your air purifier is plugged in and powered on.

3. Open your App and select "Connect Product" and follow the instructions.

Update the Blueair App:

Activate Bluetooth:

Check your router:

Ensure the following:

1. Internet is currently running
2. You are using a 2.4Ghz network
3. Deactivate VPN
4. Open your Blueair App and try to connect your product again

"Offline" in the App

If your air purifier has lost connection and does not reconnect by itself after a few minutes, the first step is to try to onboard the air purifier to the Blueair App again:

• Open the Blueair App
• Open your air purifier's page, go to Product Settings and Delete your air purifier
• Click on "Connect product" and follow the instructions to connect the air purifier again.

If that did not help, please try the following:

• Log out from the Blueair app
• Make sure that you are not signed in the Blueair app on another phone. For instance if a family member is sharing the Blueair App account with you, please ask them to sign out from the Blueair app account
• Log in with your Blueair credentials
• Reboot your air purifier (unplug, wait 15-30 seconds and plug again)
• Delete your air purifier from the app
• Connect your air purifier to the app again
• When the air purifier is online, try to change the settings again.

The firmware of my device is updating. How much time does this take?

The app notifies you every time the firmware in your device is being updated.

During the update, you must keep your air purifier connected to the Wi-Fi to have the firmware update complete. It is imperative you do not unplug the air purifier from the wall during any firmware updates.


The update should take a few minutes. Please do not disconnect your unit during the update!
If the update takes longer than a few minutes:

• Ensure your air purifier is within the router range.
• Leave your air purifier ON and connected to the WiFi. Do not unplug the air purifier during the update.
• Limit the number of connected devices or network activity while the update is in progress.

• Turn off the Wi-Fi network.
• Attempt to connect to a different Wi-Fi network or personal mobile hotspot.
• Upon connecting to a new Wi-Fi network or hotspot, the device will attempt to update again.

The Protect air purifiers have a built-in sensor to monitor the indoor air quality levels.

Particulate Matter (PM)* and Volatile Organic Compounds (VOCs)** peaks are normal and expected to happen temporarily, even when the air is of good quality because your air purifier’s sensors react each time the air purifier is in contact with airborne particles or gases.

Pollution from outside coming in from open windows or ventilation may also cause high PM levels.​

​How to decrease the particulate matter (PM) and Volatile Organic Compounds (VOCs) levels and improve your indoor air quality?

• Make sure that the air purifier is used in an adapted room size with closed windows and doors. ​
• Set the highest speed of the air purifier temporarily or use the Auto Mode
• Avoid excessive use of perfumed substances, cleaning products, or other VOC contributors​
• Ventilate the room regularly and see if the PM and tVOC level lowers.
  • If the level of tVOC lowers when the windows are open and stay at the same level when windows are closed, then the device is detecting a gas that cannot be removed by the air purifier.
  • If the level of PM stays high even when you open the windows : ​Clean the sensors.on your air purifier. If the PM levels are constantly very high, there might be accumulated dust on the sensor giving a false indication.

*Examples of PM sources: candles, smoke, cooking, incense, fireplace, accumulated dust, unfiltered vacuum cleaner, pollen, pets, etc.
**Volatile organic compounds (VOCs) are gases and odors emitted from different chemicals. VOCs can be found within the air in your home; they are released by cleaning products, cosmetics, carpeting, furniture, air fresheners and many other consumer products.

New filter​​:

• New products may emit an odor when opening the box, that is normal.​
• All materials have their own smell, including filter materials. The filter is enclosed by a plastic bag and a cardboard box, and the smell from the product is accumulated inside. The smell from filter media is harmless.​​
• Run your air purifier and ventilate your room to air out the air purifier and its filter to reduce the new filter odor faster. ​
• You may also place the new filter by an open window before starting using it or run your air purifier in a room where you spend less of your time, just for a few days until the odor fades away. ​

Any questions, please reach out to our Customer Support teams.​​

Used filter / Filter used in strong odor environment​​:

• When the filter is full and gets saturated it can start to release a smell, and we recommend replacing it. ​
• The average expected lifetime of the filter is stated for each Blueair product.​ However, the expected filter lifetime can be highly dependent on the environment the air purifier is in which could require more frequent replacement.​

Note: it is not possible to remove all odors, ventilation in addition to using air purifiers will help get rid of strong odors.​

If your air purifier does not seem to start, here is what you can try:

1. Turn off and unplug the air purifier ​​

2. Check the power cable:

​If your air purifier has a removable power cable, plug the cable firmly into the power cable socket on the air purifier. If the power cable is damaged, contact the Customer Support

3. Make sure that there are no objects or dust: ​

• Inside the air purifier, on top of or directly against the air purifier​, around the air inlets and air outlets​.

• On the pre-filters, if your air purifier has pre-filters.

• Around the air quality sensors

4. Check the filter: ​

• Make sure that the plastic wrapping around the filter is removed​.

• Insert the filters and make sure they are correctly inserted​​.

• Make sure the filter door is completely closed, or that the top of the air purifier is correctly attached to the bottom.​​

5. Confirm that your device is functioning:

• Plug the power cable firmly into an outlet.​

• Press the On/Off button to turn on the air purifier and select a speed level. If the air purifier does not have a On/Off button, directly select a fan speed from the control panel.​​

• Make sure that the LED indicators on the air purifier are lighting up​.​

• Make sure that the airflow is working (feel with your hands that air is coming out from the air outlet)​.

If the air purifier still does not work as expected​:

• Try to plug the power cable into another outlet. Or test your outlet with another device. For instance, you can plug in a lamp and see if it lights up​.​

• If you are using a power converter, make sure to check the rating label of your air purifier and verify that it is certified for use in your country. ​​

​

If your air purifier seems to be working but all lights are off, you might need to adjust the LED brightness settings in the App or deactivate the Night Mode.

What is the Night Mode doing exactely?

• If your air purifier is set on Night Mode, the LED brightness and the fan speed levels will be reduced.
• When activated, the Night Mode is indicated on your air purifier, or directly in the Blueair App, depending on your model.

How to deactivate the Night Mode?
Select another fan speed on your air purifier.​

Is the Night Mode available on all Protect air purifiers?
Yes. The Night Mode is available on all models. Different LED dimming solutions may be depending on the product model. Always refer to the user manual for more information.​

What if the LEDs on my air purifier keep being turned off or changing colors frequently?
The air purifier may be determining the air quality in the room. You might need to wait for a few minutes and re-start the air purifier if needed:

Restart the air purifier​

• Disconnect the power cable from the wall outlet and wait approximately 30 seconds ​​
• Make sure that there are no objects or dust:
  • Inside the air purifier​
  • Around the air inlets and air outlets
  • On top of or directly against the air purifier ​
  • On the pre-filters, if your air purifier has pre-filters​
  • Around the air quality sensors

• Reconnect the power cable​​
• Press the ON button​​
• Wait two minutes.​
• The LED indicators should be visible.

If your air purifier still does not function as expected, or if you notice any damage on the device, please contact the local Blueair Customer Support team: https://www.blueair.com/us/contact-us-page.html