--- product_id: 95225475 title: "Blueair 400 Series DualProtection Replacement Filter" brand: "blueair" price: "$498.16" currency: USD in_stock: false reviews_count: 9 category: "Blueair" url: https://www.desertcart.ec/products/95225475-blueair-400-series-dualprotection-replacement-filter store_origin: EC region: Ecuador --- # 4x faster pollutant removal Activated coconut carbon layer 99.9% pathogen filtration Blueair 400 Series DualProtection Replacement Filter **Brand:** blueair **Price:** $498.16 **Availability:** ❌ Out of Stock ## Summary > πŸŒ€ Breathe elite: Faster, cleaner, smarter air with Blueair DualProtection! ## Quick Answers - **What is this?** Blueair 400 Series DualProtection Replacement Filter by blueair - **How much does it cost?** $498.16 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/95225475-blueair-400-series-dualprotection-replacement-filter) ## Best For - blueair enthusiasts ## Why This Product - Trusted blueair brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **HEPASilent Optimized:** Engineered to maintain maximum Clean Air Delivery Rate (CADR) while capturing microplastics, viruses, and bacteria with no airflow compromise. - β€’ **Seamless Compatibility:** Genuine Blueair filter designed to perfectly fit Classic 402, 403, 405, 410, 450E, 455EB, and 480i models for hassle-free replacement. - β€’ **Bi-Annual Refresh Cycle:** Recommended filter replacement every 6 months to sustain peak air purification performance and protect your indoor environment. - β€’ **DualProtection Technology:** Combines high-porosity activated coconut carbon with a particle filter to eliminate odors, VOCs, smoke, pollen, dust, and harmful microbes. - β€’ **Quadruple-Speed Purification:** Removes pollutants up to 4x faster than standard carbon filters, ensuring your air stays fresh and clean in record time. ## Overview The Blueair Classic 400 Series DualProtection Filter is a premium, genuine replacement filter engineered for advanced particle, gas, and odor removal. Featuring a pleated design with activated coconut carbon, it delivers up to 4x faster pollutant elimination while maintaining optimal airflow and filtration efficiency. Compatible with multiple Blueair Classic models, it effectively captures allergens, VOCs, smoke, bacteria, viruses, and microplastics, ensuring a healthier indoor atmosphere with recommended bi-annual replacements. ## Description The newest in Blueair's advanced filter technology, our DualProtection filters have been specifically designed for particle, gas and odor removal. An upgrade to our previously offered, Smokestop Filters, the DualProtection filters’ powdered, high-porosity coconut carbon efficiently removes gaseous pollutants like PM 2.5, smoke, VOCs, exhaust, smog, odors and airborne chemicals faster. Optimized for HEPASilent technology, DualProtection filters remove pollutants such as pollen, dust, pet dander, mold spores, viruses, bacteria micro plastics with no reduction in the clean air delivery rate (CADR).* The pure, activated coconut carbon naturally removes gaseous pollutants combined with a high-performance, high porosity, quality coconut carbon. The filter is also pleated to ensure the largest filter area possible. These combine to deliver particle removal. *Min. reduction 99.9% of S. aureus, E. Coli, H1N1, A. Niger. EPA Est. 99578-CHN-1. Review: Expensive but superior performance. - I recently switched to a whole home purifier to reduce the consumables of the Blueair filters. While third party filters exist, the Blueair ones do seem to be better built and filter better. Many of the Blueair filters are designed with brushes to charge the air passing by so that they are trapped in the filter. I think there is some sort of optimization that exists. Review: Tried Non-OEM Filters and Regretted It - Made and recommended by the purifier's manufacturer, these are high quality replacements. Yes, they are expensive, but going "cheap" resulted in clogged filters and an indication within 1 month that they were not functioning. I decided that if I spent what I did for the purifier to protect me and my family, spending a little more for best filters was worth it. ## Features - UPGRADE to previously offered SmokeStop filters, designed for ultimate particle gas and odor removal with no reduction of CADR - DUALPROTECTION with activated coconut carbon layer which naturally removes odor causing VOCs and smoke while particle filter captures pollen, dust, pet dander, mold spores, viruses and bacteria* - UP TO 4x FASTER pollutant removal than other carbon filters - GENUINE Blueair Replacement Filter is compatible with Blueair Classic 402, Blueair Classic 403, Blueair Classic 410, Blueair Classic 450E, Blueair Classic 455EB, Blueair Classic 405, Bluair Classic 480i - RECOMMENDED to change filter once every 6 months ## Technical Specifications | Specification | Value | |---------------|-------| | Air Filter Construction | Pleated | | Brand | BLUEAIR | | Compatible Devices | Air Purifier | | Filter Mounting Type | Slide In | | Filter Shape | Rectangular | | Global Trade Identification Number | 00689122011998 | | Item Dimensions L x W x Thickness | 20.5"L x 9.8"W x 3.7"Th | | Item Weight | 0.38 kg | | Material | Carbon Fiber | | Material Type | Carbon Fiber | | Product Dimensions | 20.5"L x 9.8"W x 3.7"Th | | Unit Count | 1 Count | ## Product Details - **Air Filter Construction:** Pleated - **Brand:** BLUEAIR - **Compatible Devices:** Air Purifier - **Filter Mounting Type:** Slide In - **Filter Shape:** Rectangular - **Global Trade Identification Number:** 00689122011998 - **Item Weight:** 0.38 kg - **Material:** Carbon Fiber - **Product Dimensions:** 20.5"L x 9.8"W x 3.7"Th - **UPC:** 689122011998 ## Images ![Blueair 400 Series DualProtection Replacement Filter - Image 1](https://m.media-amazon.com/images/I/71FzzrgU4WL.jpg) ![Blueair 400 Series DualProtection Replacement Filter - Image 2](https://m.media-amazon.com/images/I/814L-Ksg2VL.jpg) ![Blueair 400 Series DualProtection Replacement Filter - Image 3](https://m.media-amazon.com/images/I/71qQgY3litL.jpg) ![Blueair 400 Series DualProtection Replacement Filter - Image 4](https://m.media-amazon.com/images/I/71BBvJGyG7L.jpg) ## Questions & Answers **Q: Why is this filter producing a smell with over 160+ days left?** A: If you are using a DualProtection (previously "SmokeStop") filter, the filter will always have a smell of burnt charcoal as long as the charcoal remains effective. While strong at first, it should soon taper off to the point where you only smell it if your nose is right at the air outlet of the unit. If you don't smell it there, then the filter no longer is effective at removing odors/VOCs. **Q: Why does this filter come in two parts (carbon can be pulled away using the cloth tab)?** A: As mentioned, original Blueair filters do not have a separate carbon layer which can be pulled off. The good news is, a separate, removable carbon layer means you can replace it when the carbon is no longer effective (which is typically much sooner than the particle filter needs replacing, so it can save you money). The bad news is, you are not using the intended Blueair filter, which means you are probably not getting the same level of filtration with the same airflow as you would be otherwise. **Q: how much carbon is in the combination filter? Blueair chat told me about 7 lbs, but that is much more than the weight of the product so am skeptical** A: There is no carbon in this filter or the ones I buy, I have in the past bought the smoke eater filter. That filter has carbon, found that the cost is not worth it **Q: On the dp filter i received, on the black metal side, it says to face the fan - is that the intake side? so left: white, right: black when cover open?** A: Years ago I was told directly by the Blueair techs in Sweden, that the black carbon side of the filter needed to face outwards, so the metal grid on the particle side of the filter faces away from the ionizer at the air inlet. Otherwise the metal grid would dissipate the charge on the particles and reduce the efficiency of the filter. If it is indeed the case now that it doesn't matter, then definitely place the filter with the carbon side facing inwards, as the carbon element clogs up with dust much quicker than the pleated element of the filter. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Expensive but superior performance. *by G***A on April 7, 2025* I recently switched to a whole home purifier to reduce the consumables of the Blueair filters. While third party filters exist, the Blueair ones do seem to be better built and filter better. Many of the Blueair filters are designed with brushes to charge the air passing by so that they are trapped in the filter. I think there is some sort of optimization that exists. ### ⭐⭐⭐⭐⭐ Tried Non-OEM Filters and Regretted It *by H***N on July 6, 2021* Made and recommended by the purifier's manufacturer, these are high quality replacements. Yes, they are expensive, but going "cheap" resulted in clogged filters and an indication within 1 month that they were not functioning. I decided that if I spent what I did for the purifier to protect me and my family, spending a little more for best filters was worth it. ### ⭐⭐⭐⭐⭐ OEM filters are the best! *by T***T on January 3, 2026* Excellent quality air filter. It's always good to use OEM filter. ## Frequently Bought Together - BLUEAIR Classic 400 Series Genuine DualProtection Filter; fits Classic 480i, 402, 403, 405, 410, 450E, 455EB - BLUEAIR Classic 200 Series Genuine DualProtection Filter; fits Classic - BLUEAIR Classic 500/600 Series Genuine Dual Protection Replacement Filter; fits Classic 580i, 680i, 501, 503, 505, 510, 550E, 555EB, 601, 605 ( 3 pack ) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/95225475-blueair-400-series-dualprotection-replacement-filter](https://www.desertcart.ec/products/95225475-blueair-400-series-dualprotection-replacement-filter) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-08-24*