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Filters the air at a rate of approximately 4.8x an hour (or about every 12.5 minutes)¹ in a 242 ft² room to effectively lower particle levels and help maintain a comfortable environment in your guest bedroom, home office, or dining room.²
The dual-use design blends into your room as a sleek piece of Scandinavian-style furniture. Features a premium, light grey textile finish and vegan leather tag. No need to hide your air purifier; place it prominently in the room where it will be most effective. Placing liquids or objects over 22 lbs on the air purifier is not advised.
Verifide® by the Association of Home Appliance Manufacturers (AHAM) for performance and Clean Air Delivery Rate (CADR).
Certified as an energy-efficient air purifier by the EPA's ENERGY STAR® rating program.
Verified Zero Ozone by Intertek Sustainability. Meets UL 2988 and does not emit more than 0.0005 PPM as tested.
Certified by the California Air Resources Board for meeting the ozone emissions limit.
Awarded the 2021 iF Design Award, from one of the world’s most celebrated and valued design competitions, recognized as a symbol of design excellence around the world.
Selected as a winner of the 2021 Red Dot Design Award in the areas of product design, communication design, and design concepts.
Our unique combination of electrostatic and mechanical filtration that we call HEPASilent™ filtration technology sets us apart. The combination allows us to use filters that are less dense than traditional True HEPA filters without a loss in performance— resulting in quiet and energy-efficient air purifiers.
Helps to eliminate unnecessary filter replacement with accurate lifetime tracking via an algorithm. The remaining filter life is estimated based on fan speed, sensor data, and filter loading.
When pollutant levels creep up, the proactive Clean air ETA feature counts down your time to clean air in the Blueair app.
Stay up to date on your air with a five-color air quality indicator (AQI). Located on the front of the air purifier, the LED changes color to indicate conditions as measured by the particle sensor.
Delivers more⁴ clean air with noise levels quieter than a whisper⁵ (29 dB) on the lowest speed and less noise than a normal conversation (45 dB) on the highest speed.
ENERGY STAR rated for energy efficiency to deliver more⁴ clean air using less energy than a light bulb (5-22 watts), on even the highest speed.⁶
Orders ship free and typically arrive within 5 business days in most states. Charges may be incurred for Alaska and Hawaii.
Breathe easy with a 60-day in-home trial period. If you're not happy, we'll help arrange for a free return.
Guarantee clean air for years to come by extending your 1-year warranty coverage for up to 5-years.
Enable voice control via your Amazon Alexa or Google Assistant-enabled device.
In Auto mode your air purifier will automatically increase fan speed when pollution levels rise in your indoor environment and return to a slower speed once the air is clean.
Switch the setting to night mode to disable the air quality indicator LED and set to whisper-quiet (low speed).
Wi-Fi connectivity for remote controlYes, compatible with 802.11 b/g/n router on 2.4GHz Wi-Fi Network band
On/off timerYes (via Blueair App)
Filter replacement indicatorYes, via LED display & Blueair App
Speed control options1 - 2 - 3 - AUTO - NIGHT
Integrated air sensorsYes
Included in Box
- DustMagnet™ 5240i air purifier
- Instruction manual
Dimensions(HxWxD)20.5 x 9.1 x 9.1 in
Energy consumption5 - 22 Watts
Sound level22 - 45 dB(A)
Recommended filter changeEvery 6 – 12 months depending on your environment
Recommended room size212 ft2
Air changes per hour (ACH)4.8
Clean air delivery rate (CADR) - Pollen140 cfm
Clean air delivery rate (CADR) - Dust133 cfm
Clean air delivery rate (CADR) - Smoke137 cfm
Number of filters2
Guarantee clean air for years to come with up to 5-years of warranty coverage when you register your air purifier.
The DustMagnet 5210i has a standard white finish, while the upgraded 5240i model features a premium, light grey textile front, matching grey legs, back panel, and a vegan leather tag.
Our DustMagnet air purifiers with ComboFilters feature integrated activated carbon throughout the particle filter media to remove both fine particles and odors and gases. While DustMagnet models absorb light household gases and odors, they are not designed to accommodate high levels of gases, chemicals and odors that can be present in wildfire smoke.
The integrated particle sensor measures fine particle (PM2.5) levels in your room and updates the color of the air quality indicator (AQI) light on the front of the air purifier based on current conditions. 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.
To extend the Limited Warranty from one year to five (5) years, simply complete the product registration form in the 'Warranty' section of your customer account, within (60) days of purchase or register through the Blueair mobile app.
To reset the filter status light, press and hold the airflow speed button for 5 seconds.
¹Air Changes per Hour (ACH) calculation is a product of recommended room size and average ceiling height over pCADR.
²According to ANSI/AHAM AC-1, recommended room size.
³Removal of 99% of airborne dust particles (0.5-3 µm) in 34 min on highest speed based on AHAM AC-1 protocol; not applicable to larger particle sizes.
⁴Based on particle CADR using GB/T18801-2015 standards comparing HEPASilent technology (mechanical + electrostatic filtration) vs. only mechanical filtration at same fan speed (RPM) and energy consumption (18.3 W)
⁵Sound pressure according to GB/T18801 and GB4214.1.
⁶Tested according to GB/T18801-2015 standard. ”Light bulb" defined as an LED light bulb with 40 W energy consumption.