Classic 400 Series DualProtection Filter

Classic 400 Series DualProtection Filter

Compatible with Classic 403 • 405 • 450E • 402 • 410 • 455EB • 480i
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Blueair Classic 400 series DualProtection filtration
4x faster odor removal³

Pure, high-porosity coconut carbon efficiently removes gaseous pollutants from your home 4x faster than other Blueair filters, including household chemicals and cleaners, volatile organic compounds (VOC) and odors from pets, cooking, and smoking.


³Based on Blueair internal tests


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Genuine performance, superior quality

Unlike generic look-a-likes, genuine Blueair replacement filters are specifically designed to maintain superior performance over time and ensures your warranty remains intact.


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Replacement is easy

When it's time to replace your filter (about every six months), start by unplugging your air purifier. Open the back door to remove the old filter and vacuum away any dust on the inside. Insert the replacement filter, close the back door, and plug back in. Easy.


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Less dense filters make the difference

Our unique HEPASilent™ filtration technology allows our filters to be less dense. Less dense filters require less air pressure— resulting in quieter and more energy efficient air purifiers.

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Two pollutant types, two layers of defense*

Classic DualProtection filters feature a highly-porous, lightweight carbon mesh that is extremely efficient at removing both particle and gaseous (odors, exhaust, smoke odors, and chemicals) pollutants from the air. Whereas Classic Particle filters are highly efficient in the removal of particle pollutants like pollen, dust, mold*, viruses*, and fine smoke particles.

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Traps particles for good

The filter structure traps even the smallest particles and resists clogging to maintain maximum airflow.

  • Filter Type
    Carbon + Particle filter. Activated coconut shell carbon. Non-woven gradient Polypropelyne fibers. Free of chemicals and binders. Fiber shedding resistance.
  • Dimensions(HxWxD)
    521 x 250 x 95 mm
  • Product weight
    1.3 kg
  • Filter frame material
    Paper
  • Filter recycling
    Yes, please check your local recycling facility for availability.
  • Recommended filter change
    6 months (4,380 hours) when used 24 hours a day
  • Number of filters
    1
What Blueair models are compatible with this filter?

This filter is compatible with the following Classic family models: 402, 403, 405, 410, 450E, 455EB, 480i.

How does this filter differ from the Classic 400 Series Particle filter?

Classic DualProtection filters feature a highly-porous, lightweight carbon mesh that is extremely efficient at removing both particle and gaseous (odors, exhaust, smoke odors, and chemicals) pollutants from the air. Whereas Classic Particle filters are highly efficient in the removal of particle pollutants like pollen, dust, mold, viruses, and fine smoke particles.

What is a filter subscription?

Purchasing a filter subscription saves you time and effort. At the time of purchase, the subscription will automatically schedule filter deliveries at the recommended six months. You can always adjust this timeframe from the 'My Account' section.


Learn more about filter subscriptions

Are Blueair filters HEPA?

No, Blueair filters are less dense than traditional HEPA filters, allowing our air purifiers to be quieter and more energy-efficient. Instead of HEPA filters, we use a combination of electrostatic and mechanical filtration that we call HEPASilent™ technology to achieve the same level of filtration efficiency - with less energy and noise.

*Min. reduction 99.9% of S. aureus, E. Coli, H1N1, A. Niger