Refurbished air purifiers

Refurbished Classic 405



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Subscription for Classic 400 Series Particle Filter

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Why subscribe?

Subscribe today and enjoy a 5% discount on all future filter orders, always free shipping, and other special offers. Simplify filter replacement and enjoy always clean air with four filter delivery options to fit your air purifier use. We recommend replacing your Blueair filter every 6 months for optimal performance.

Blueair quality guaranteed. Each Refurbished Classic 405 Wi-Fi air purifier undergoes a rigorous reconditioning process to ensure it meets our high-quality standards and is backed by the same 1-year limited warranty as new Blueair units.
Room Size
434 ft2
33 lbs
Air Changes
5 per hour
Yes (via Blueair Friend App)
Sound Level
32 - 52 dB(A)
Fan Speed
1 - 2 - 3
Area & Effect
Room size
434 ft2 (40 m2)
CADR (Smoke)
280 cfm (476 m³/h)
CADR (Dust)
300 cfm (510 m³/h)
CADR (Pollen)
300 cfm (510 m³/h)
Air changes per hour
Refurbished Classic 405
Dimensions (H x W x D)
23 x 20 x 11 in (590 x 500 x 275 mm)
Product weight
33 lbs (15 kg)
Energy consumption
15 - 90 W
Sound level
32 - 52 dB(A)
Integrated air sensors
Air outlet
Air inlet
Remote control
Yes (via Blueair Friend App)
On/off timer
Yes (via Blueair Friend App)
Filter replacement indicator
Speed control options
1 - 2 - 3
Wi-Fi connectivity
Compatible with 802.11 b/g/n router on 2.4GHz Wi-Fi Network band. Network security; open, WEP, WPA, & WPA2

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