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Blueair Blue PURE 211i Max Air Purifier-featured

Blueair Blue PURE 211i Max Air Purifier User Manual

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Blueair Blue PURE 211i Max Air Purifier

Blueair Blue PURE 211i Max Air Purifier-product

The energy efficiency of this ENERGY STAR-certified model is measured based on a ratio between the model’s CADR for Smoke and the electrical energy it consumes, or CADR/Watt. Blue Pure 211i Max air purifier is an electrical appliance for indoor use only. Take the necessary precautions to reduce the risk of fire, electric shock, or injury.

WARNING: RISK OF ELECTRIC SHOCK – These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

  • This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or a lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
  • Supervise children to ensure that they do not play with the appliance.
  • Cleaning and user maintenance shall not be made by children without supervision.
  • Always disconnect the appliance from the power supply before maintenance.
  • Do not attempt to open or service the appliance yourself; this can void your warranty. Service must be done by the manufacturer, service agent, or similarly qualified personnel using only original Blueair spare parts.
  • Ensure that the power cable and the power plug are not at risk of getting damaged. To avoid hazard, a damaged power cable must always be replaced by the manufacturer, service agent, or similarly qualified person.
  • If the appliance is damaged or malfunctions, turn it off, disconnect it from the power supply, and contact Blueair.
  • The power plug must be firmly inserted in the power socket.
  • To reduce the risk of electric shock, this equipment has a polarized plug (one blade is wider than the other). This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact qualified personnel to install the proper outlet. Do not alter the plug in any way.
  • When disconnecting the unit from the power supply, do not pull on the power cord; pull on the power plug.
  • Use the power cable provided with your Blueair air purifier to plug directly and firmly into an appropriate electrical outlet.
  • Do not use an extension cord or a power strip. Refer to the rating label on your appliance.
  • Do not alter the power plug in any way. If the plug does not fit into the outlet, contact qualified personnel to install the proper outlet.
  • Do not use the included power cord for anything else but the appliance.
  • Do not allow objects to enter or block the air inlets and air outlets, as this can cause electric shock or damage the appliance.
  • Do not place any objects on top of or directly against the appliance.
  • Do not sit on, stand, climb onto, or hang from the appliance.
  • Keep the appliance, including the power cable, at a safe distance from heated surfaces and open fire.
  • Keep the appliance and power plug away from water and other liquids.
  • Keep the appliance and power plug away from chemicals such as pesticides and deodorants.
  • Place the air purifier on the floor or a stable surface to prevent tipping.
  • Do not use the appliance outdoors or in wet environments such as bathrooms, laundry rooms, or pool areas.
  • Always turn off and disconnect the appliance from the power supply before moving the unit, changing filters, cleaning, or carrying out maintenance procedures.
  • Never clean with gasoline, chemical solvents, or corrosive materials, as these agents may damage the air purifier.

Product mapBlueair Blue PURE 211i Max Air Purifier-1

  • User interface
  • Air outlet
  • Air quality indicator (AQI)
  • Fan motor
  • Noise shield
  • Particle & carbon filter
  • Washable fabric pre-filter

Air quality status

The air purifier has a particle sensor to measure the fine particles (PM 1, PM 2.5, and PM 10) levels. The LED indicator displays air quality status in 5 colors from excellent (blue) to very polluted (red).Blueair Blue PURE 211i Max Air Purifier-2

Getting startedBlueair Blue PURE 211i Max Air Purifier-3

  1. ON/Standby
  2. Night mode (lowest speed setting)
  3. Fan speed (0-1-2-3-4)
  4. Auto mode
  5. Toggle
  6. Filter replacement
  7. Real-time PM values
  8. Wi-Fi

Auto mode

Automatically adjusts the fan speed based on your indoor PM levels to ensure optimal air quality. Recommended setting.

Night mode

Lowest fan speed and fully dimmed lights.

Fan speeds 1–2-3-4

Fan speed levels, which you can manually set by pressing the Fan Speed button on the interface or adjust via the Blueair app.

How to use tips

Change brightness

Press the Fan Speed button and the On/Standby button at the same time. Hold for three seconds.

Then, keep holding your finger on the On/Standby button and tap the Fan Speed button with the other finger to adjust brightness.

If the brightness is on the lowest level, then it will increase by one level. If the brightness is on the highest level, then it will decrease by one level.

Turn off/on Wi-Fi LED

When starting the appliance for the first time, the Wi-Fi LED will blink to signal that the device is ready for pairing. After successfully connecting the appliance to the app, the Wi-Fi LED will stay solid.

If you choose not to connect the product, the Wi-Fi LED can be turned off. Long-press the Fan Speed button for about 5 seconds and then release. The Wi-Fi LED will stop blinking.

Enable/disable Child lock

Long-press the On/Standby button for about 5 seconds (until all the LEDs of the interface light up and blink once). Then release.

When the Child lock is on, the air purifier will continue to operate, but the speed/mode button will be locked.

Filter reset

Press the Fan Speed button for about 15 seconds (until all the LEDs of the interface light up). Then release.

After replacing the filter, it is required to manually conduct a filter reset on the appliance. If done correctly, the red filter replacement indicator will blink three times and then disappear.

Factory reset

Extra long press the On/Standby button for about 30 seconds (until all the LEDs of the interface light up for the second time and blink four
times). Then release.

After a factory reset, the air purifier restarts with the default configuration and will go into Standby mode.

Connect to the Blueair app

Connecting to the Blueair app allows you to control the air purifier remotely and monitor filter usage. The app offers additional functions to the air purifier.

  1. Download the Blueair app from the App Store or Google Play.
  2. Open the app. Create or sign in to your Blueair account.
  3. Click on Connect Product and select Blue. Follow the instructions to complete app pairing.

First-time connection tips

  • Make sure to turn on your air purifier. Once the Wi-Fi indicator is blinking, it is ready to be paired with your app.
  • Make sure you are using a visible Wi-Fi network that is not hidden. VPN (Virtual Private Network) should be deactivated while using the Blueair App.
  • Bluetooth is required for first-time pairing. Turn your phone’s Bluetooth on and keep your phone within 3ft of the air purifier for initial pairing.
  • This air purifier can only connect to 2.4 GHz Wi-Fi. If you are using a dual-band Wi-Fi router, make sure to select 2.4GHz.
  • Keep your air purifier within 15 feet of your Wi-Fi router to maintain optimal connection.

Maintenance information

Important! Turn the air purifier off and disconnect the air purifier from the power supply before maintenance.

Changing your filterBlueair Blue PURE 211i Max Air Purifier-4

When your air purifier’s indicator light turns red, it’s time to change the main filter. This will occur some time between 6 and 9 months of operation, depending on usage and your air quality conditions.

  1. Turn off the air purifier and unplug it. Rotate the top counter-clockwise to unlock, then lift up to remove it.
  2. Remove the fabric pre-filter and the noise shield.
  3. Use the filter handles to pull out the old filter and replace it with a new one. Make sure to remove plastic wrapping before inserting the new filter in the appliance.
  4. Place the noise shield back on top of the filter. Pull up the fabric pre-filter over the filter and the noise shield. (Please ensure that the leather tag is on the upper side of the fabric pre-filter.)
  5. Twist the top back on and plug in the air purifier.
  6. Important! Turn the air purifier back on and reset the filter indicator by pressing down the Fan Speed button for 15 seconds. (until all the LEDs of the interface light up for the second time and blink once). Then release.

Cleaning your washable pre-filter

Clean your pre-filter regularly when you see dust or dirt. Vacuum the exterior of the fabric with a soft brush attachment. If the pre-filter requires a deeper clean, wash according to the instructions on the pre-filter´s label. Hang to dry.

  1. Turn the air purifier off and unplug it. Rotate the top counter-clockwise to unlock and remove it.
  2. Remove the fabric pre-filter from the noise shield and main filter.
  3. Wash according to instructions on the fabric pre-filter´s label.
  4. Pull the clean pre-filter back over the noise shield and main filter.
  5. Please ensure that the leather tab of the pre-filter is on the upper part.
  6. Push the top cylinder down, and rotate it clockwise to lock it.

Disposal and recycling

This air purifier should be recycled as electronic waste. If you have any questions regarding the disposal of this air purifier, please contact your local waste management for the best way to recycle.

TroubleshootingBlueair Blue PURE 211i Max Air Purifier-5

Blueair Blue PURE 211i Max Air Purifier-6

For more information and troubleshooting tips, please check the Support page on www.blueair.com

For more Manuals by Blueair, visit ManualsLibraryy

Blueair Blue PURE 211i Max Air Purifier-FAQs

Is it safe to sleep with the air purifier on all night?

Yes. It is completely safe to keep the purifier running overnight as long as it is suited for your room size. Most units provide several air changes per hour, so nighttime use is recommended.

Can I keep my Blueair 211i Max running 24/7?

Yes. Blueair purifiers are designed for continuous use. Running it all the time—especially in Auto mode—helps maintain consistent indoor air quality.

How often should I replace the Blueair 211i Max filter?

Blueair recommends replacing the filter every 6 months. If you live in a polluted area, you may need to change it sooner. The filter indicator light will remind you.

Where is the best place to put my Blueair purifier?

Place it in the room you spend the most time in—like the bedroom or living room. Keep at least 10 cm (4 inches) of space around it for proper airflow. Avoid tight corners or blocking objects.

Should I keep doors and windows closed while using the purifier?

Yes. For best performance, operate the purifier in a closed room. Open windows and frequent door movement reduce cleaning efficiency.

Can I put the unit under a table or behind furniture?

No. Avoid placing it under tables, behind curtains, or near walls. These block airflow. Place it in an open spot, ideally 3–6 feet from where you sit or sleep.

Should an air purifier run all day?

Ideally, yes. Air quality changes throughout the day, so continuous operation ensures cleaner air, especially if the unit has Auto mode.

How can I tell if my air purifier is working?

Check for steady airflow from the top. Also, monitor the filter indicator—if it shows reduced performance, a filter change may be needed.

Are air purifiers safe for the lungs?

Yes. They help remove dust, allergens, and fine particles, which supports healthier breathing, especially for people with asthma or sensitivities.

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