Classic 405
The Blueair Classic 203 Slim takes up so little space, yet it delivers solid clean-air performance. A great choice for smaller-sized rooms where you and your loved ones want to breathe easy.
Filters the air in a 240 ft² space in about 12.5 min¹ (4.8x an hour, based on AHAM recommended removal rate) to effectively lower particle levels and maintain a comfortable environment in medium spaces like master bedrooms, living rooms, and playrooms.
Comes standard with a particle filter to remove airborne allergy and asthma triggers like pollen, dust, pet dander, mold, smoke and more.
Get clean air while you sleep without noise disruption. Quiet Mark approved for operating at a whisper quiet 32 dB on its lowest speed, and no louder than the 52 dB white noise of a floor fan on its highest speed.
The Classic 405 air purifier allows you to take full control of your indoor air quality with intelligent smartphone control and Alexa compatibility.
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Wi-Fi connectivity for remote controlYes
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On/off timerYes (via Blueair Friend App)
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Filter replacement indicatorYes
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Speed control options1 - 2 - 3
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WheelsOptional
Items packaged individually within box - please read manual for set-up instructions.
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Dimensions(HxWxD)23 x 20 x 11 in (590 x 500 x 275 mm) in
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Product weight33lbs
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Energy consumption15 - 90 W
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Sound level32 - 52 dB(A)
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Air outletSide
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Air inletSide
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Recommended room size434 ft2
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Air changes per hour (ACH)4.8
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Clean air delivery rate (CADR) - Pollen300 cfm (510 m³/h)
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Clean air delivery rate (CADR) - Dust300 cfm (510 m³/h)
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Clean air delivery rate (CADR) - Smoke280 cfm (476 m³/h)
Guarantee clean air for years to come with up to 5-years of warranty coverage when you register your air purifier.
The 480i model comes with a built-in sensors for particles (PM2.5), and gases/Volatile Organic Compounds (VOC), temperature and humidity, as well as the AUTO mode setting.
Press and hold down the orange filter status LED for 10 seconds to reset the replacement filter indicator.
First, make sure your Wi-Fi network is connected to the internet, and check that your network name and password are correct. You can also try unglugging the cord from the electrical outlet and plug it back in again.