![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dw9a834857/New/PDP%20-%20Body%20/200%20Particle/classic_particle_200_pdp_herofeature.png)
![Blueair Image Blueair Image](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dwbda9b928/global-content/400-particle-filter-view.png?sw=368)
Particle filters minimize allergy triggers, viruses, and bacteria for a healthier home environment with high filtration efficiency. Together with HEPASilent™ filtration technology, our particle filters remove 99.97% of airborne particles down to 0.1 microns, including pollutants such as pollen, dust, pet dander, mold spores, viruses, bacteria, fine smoke particles and more.
![Blueair Image Blueair Image](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dw1ab170f4/New/PDP%20-%20Body%20/400%20Particle/classic_particle_400_pdp_feature1.png?sw=468)
Unlike generic look-a-likes, genuine Blueair replacement filters are specifically designed to maintain superior performance over time and ensures your warranty remains intact.
![Blueair Image Blueair Image](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dw44e832ce/global-content/400-series-side-on.png?sw=468)
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.
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dwb0fc732d/feature-icons/less-dense-filters.png)
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.
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dw7948eb7f/feature-icons/germs.png)
Particle filter removes airborne pollutants and allergens such as pollen, dust, pet dander, mold spores, bacteria, viruses, fine smoke particles, and more.
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dw037bf143/feature-icons/particles.png)
The filter structure traps even the smallest particles and resists clogging to maintain maximum airflow.
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dw4a914d99/feature-icons/prevent-bacterial-growth.png)
Filter fibers resist bacteria and mold growth, to ensure you'll never put bacteria and mold back into the air.
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-row-content-library/default/dwa3c001c3/feature-icons/6-months-icon.png)
To maintain optimum performance, we recommend changing your filter about once every 6-months when used 24 hours a day.
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Filter TypeGradient structured filter with thermally bonded fibers containing polypropylene and polyethylene free of chemicals and binders. Fiber shedding resistant.
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Dimensions(HxWxD)521 x 250 x 95 mm
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Product weight0.9kg
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Filter frame materialPaper
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Filter recyclingYes, please check your local recycling facility for availability.
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Recommended filter change6 months (4,380 hours)
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Number of filters1
![Classic 400 Series Particle Filter Classic 400 Series Particle Filter](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Sites-blueair-row-master-catalog/default/dwf1ac1790/filters/classic/Classic%20Particle/400/classic_particle_400_pdp_hero.png?sw=450&sh=450&sm=fit)
This filter is compatible with the following Classic family models: 402, 403, 405, 410, 450E, 455EB, 480i.
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 as 'True HEPA' - with less energy and noise.
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.