Specification Brand : Blueair BulletPoint1 : 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* BulletPoint2 : UPGRADE YOUR DEFENSES: Blue Pure 411 Auto Series AllergenBlock Blueair filter is designed for optimal performance; Compatible with 411, 411+ and 411Auto air purifier* BulletPoint3 : 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* BulletPoint4 : 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 Color : Black CompatibleDevices : Air Purifier ExternallyAssignedProductIdentifier1 : 689122024967 ExternallyAssignedProductIdentifier2 : 0689122024967 GpsrSafetyAttestation : 1 IncludedComponents : Air Purifier, Washable Pre filter, Filter ItemName : Blueair Blue Pure 411 Series AllergenBlock Filter, Genuine Replacement, Blue Pure 411 Auto Series AllergenBlock Filter Fits 411, 411+ and 411Auto ItemPackageDimensions_Height : 31.3944 centimeters ItemPackageDimensions_Length : 6.604 centimeters ItemPackageDimensions_Width : 29.4894 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : air-purifier-replacement-filters Manufacturer : Blueair Material : Polypropylene MinimumEfficiencyReportingValue : 13 ModelName : 411 Series Allergy Filter ModelNumber : 110671 NumberOfItems : 1 PackageLevel : unit PartNumber : 110671 ProductGrade : Replacement Part ProductSiteLaunchDate : 2023-06-21T04:06:25.557Z Size : 2.5" x 12" x 11.5" Style : 411 AllergenBlock Filter SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40161505 WarrantyDescription : 2 year warranty WebsiteShippingWeight : 0.39 kilograms