--- product_id: 668033619 title: "Blue Pure 311i Max Series AllergenBlock Filter, Genuine Replacement Filter for Allergies, Pollen, Dust, Pet Dander, Fits Blue Pure 311i Max Air Purifier" brand: "blueair" price: "S$176" currency: SGD in_stock: true category: "Blueair" url: https://www.desertcart.sg/products/668033619-blue-pure-311i-max-series-allergenblock-filter-genuine-replacement-filter store_origin: SG region: Singapore --- # 6-month auto-replacement cycle 4-layer advanced filtration 90% allergen neutralization Blue Pure 311i Max Series AllergenBlock Filter, Genuine Replacement Filter for Allergies, Pollen, Dust, Pet Dander, Fits Blue Pure 311i Max Air Purifier **Brand:** blueair **Price:** S$176 **Availability:** βœ… In Stock ## Summary > πŸ›‘οΈ Breathe Boldly: Defend your space with next-level allergen blocking. ## Quick Answers - **What is this?** Blue Pure 311i Max Series AllergenBlock Filter, Genuine Replacement Filter for Allergies, Pollen, Dust, Pet Dander, Fits Blue Pure 311i Max Air Purifier by blueair - **How much does it cost?** S$176 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/668033619-blue-pure-311i-max-series-allergenblock-filter-genuine-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€’ **Sleek & Sustainable:** Lightweight pleated design ensures efficient airflow while maintaining eco-conscious durability. - β€’ **Effortless Freshness:** Subscribe & save with automated filter replacement every 6 monthsβ€”never miss a beat in clean air. - β€’ **Seamless Compatibility:** Specifically engineered for Blue Pure 311i Max and 311i+Max air purifiers for peak performance. - β€’ **Ultimate Allergen Shield:** Neutralizes over 90% of pollen, dust, and pet dander for sneeze-free living. - β€’ **Quadruple Filtration Power:** Four-layer design including activated carbon to trap allergens and reduce household odors. ## Overview The Blue Pure 311i Max Series AllergenBlock Filter is a genuine replacement filter designed to neutralize over 90% of common airborne allergens like pollen, dust, and pet dander. Featuring a four-layer filtration system with an activated carbon layer to reduce odors, it fits Blue Pure 311i Max and 311i+Max air purifiers. Optimized for continuous 24/7 use, it requires replacement every 6 months, with an optional subscription service for hassle-free maintenance. ## Description Upgrade your defenses and boost allergen protection. AllergenBlock* defense layer neutralizes over 90% of the allergen properties such as sneeze-inducing dust, pollen and pet dander that can trigger discomfort. Blue Pure 211i Max Series AllergenBlock Blueair filter is designed for optimal performance. Compatible with Blue Pure 211i Max air purifier. *AllergenBlock refers to inanimate allergens pollen, dust and pet dander. Based on ELISA deactivation testing of Pollen (Cry J1), Pet Dander (Fel d1, Can F1), Dust Mite Matter (Der f1) on the filter media in 60 minutes. ## Features - BOOST ALLERGEN PROTECTION: AllergenBlock defense layer neutralizes over 90% of the allergen properties such as sneeze-inducing dust, pollen and pet dander that can trigger discomfort* - UPGRADE YOUR DEFENSES: Blue Pure 311i Max Series AllergenBlock Blueair filter is designed for optimal performance; Compatible with 311i Max and 311i+Max air purifier* - SNEEZE-INDUCING ALLERGENS: Four layers of air purifier filtration; AllergenBlock defense layer neutralizes over 90% of pollen, dust and pet dander on the Blueair filter; Carbon layer reduces light household odors* - AUTOMATED FILTER REPLACEMENT: Subscribe and save up to 10% on auto-delivered filters when replacement is needed; When used 24 hours a day, your Blueair filter should be replaced every 6 months to effectively reduce airborne pollutants and allergens ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08KQKR8LY | | Air Filter Construction | Pleated | | Best Sellers Rank | #52,331 in Kitchen ( See Top 100 in Kitchen ) #397 in Air Purifier Filters | | Brand Name | BLUEAIR | | Common Applications | Residential, Appliances | | Compatible Devices | Air Purifier | | Customer Reviews | 4.6 4.6 out of 5 stars (93) | | Filter Shape | Rectangular | | Included Components | Air Purifier Replacement Filter | | Item Dimensions L x W x Thickness | 45L x 29W x 9.4Th centimeters | | Item Type Name | Air Purifier Filter | | Item Weight | 0.76 Kilograms | | Manufacturer | Blueair | | Manufacturer Part Number | 111228 | | Material Type | Activated Carbon | | Model Number | 111228 | | Number of Items | 1 | | Product Grade | Replacement Filter | | UPC | 689122026718 | | Unit Count | 1 Count | ## Product Details - **Brand:** BLUEAIR - **Compatible devices:** Air Purifier - **Item weight:** 0.76 Kilograms - **Material:** Activated Carbon - **Product dimensions:** 45L x 29W x 9.4Th centimeters ## Images ![Blue Pure 311i Max Series AllergenBlock Filter, Genuine Replacement Filter for Allergies, Pollen, Dust, Pet Dander, Fits Blue Pure 311i Max Air Purifier - Image 1](https://m.media-amazon.com/images/I/71MaIdrOfeL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: How often do I need to change the filters?** A: Your filter will last up to 9 months thanks to our proprietary RealTrack algorithm that accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels. **Q: What pollutants does the Blue Pure 311i Max filter out?** A: Our HEPASilent dual filtration technology removes 99.97% of airborne particles, ensuring pollen, cooking odors, smoke, dust, pet dander, mold, chemicals, allergen matter and even tiny particles such as viruses and bacteria, are captured. --- ## 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.sg/products/668033619-blue-pure-311i-max-series-allergenblock-filter-genuine-replacement-filter](https://www.desertcart.sg/products/668033619-blue-pure-311i-max-series-allergenblock-filter-genuine-replacement-filter) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-07-25*