Select the filter that fits your space, from everyday particle filtration to added protection against smoke, gases & odors.
Easy replacement and a built-in filter change reminder make it simple to keep your purifier ready to perform
Classic 400 Series DualProtection Filter
DualProtection
Fast & free shipping
30-day returns
Extended warrantyWhy you’ll love it
Reliable filtration and simple maintenance make it easy to keep your Classic performing its best.
- Captures dust, pollen & pet dander
- Choose the filtration that fits your needs
- Replace about every 6 months
- Easy to remove and replace Filter indicator lets you know when it’s time for a fresh filter
6 month filter lifetime 
Accurate filter lifetime tracking 
App replacement alerts 
Quick & easy filter
changes
Features & Technologies
- Particle Filter captures dust, pollen, pet dander and fine airborne particles.
- DualProtection Filter adds enhanced carbon filtration to help reduce odors, gases, smoke and VOCs.
- 6-month replacement cycle keeps maintenance straightforward.
- Filter change indicator reminds you when it’s time to replace.
- Easy replacement design makes filter changes quick and simple.
Select the filter that fits your space, from everyday particle filtration to added protection against smoke, gases & odors.
Easy replacement and a built-in filter change reminder make it simple to keep your purifier ready to perform
Smart Filtration, you can trust
Find the Blueair model name on the label inside your air purifier.
Blueair’s proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
Dirty filters clean the air less efficiently. Sign up for a filter subscription and get fresh filters delivered right when you need them.
Main Filter Captures airborne particles including, PM 2.5, pollen, dust mite matter allergen & pet dander allergen
Activated Carbon
Traps light household odors from smoke, cooking odors and more
FAQ
What air purifier is this filter compatible with?
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 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.
How do I know when it’s time to change my filter?
A filter change indicator light that will alert you when it's time to replace the filter. You can also check the status via the Blueair app for models with smart capabilities.
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Originally published on Blueair US
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