<p>★【Package Includes】 2 * Blue Pure 411 Filter Replacement (Particle and Activated Carbon Filter). Combination Particle + Carbon Replacement filter designed to fit for Blue Pure 411+, 411, 411 Auto and MINI air purifiers.</p> <p>★【2-in-1 Filtration System】This replacement filter used 2 layers of filtration and adds nano fiber filter layer, which has stronger filtration effect on ultra-fine dust below 0.1um.</p> <p>★【CARBON FILTER】Our blue air filter combination particle plus carbon replacement filter is capable of attaching 99.7% of the suspended as small as 0.3 microns, and absorbs unpleasant household smells, odors and pet odors or gases. Besides, it can effectively reduce the running noise through nano fiber filter layer. It's the ideal and perfect air purifier accessory for fresh air and odor free.</p> The HEPA and activated carbon air filter replacement is specifically designed to fit Blue Pure 411, 411+ & Mini Air Purifier. Compared to part # blue air filter replacement 411. Good Material: Made of environmentally friendly non-woven fabric and activated carbon, both adopt advanced lower energy consumption and lower density structure technology verified by the manufacturer, with lower wind resistance and less pressure to ensure maximum filtration. Clean Air: Captures 99.7% of the suspended as small as 0.3 microns such as hair,dander,and lint. Removes unpleasant odors including cooking smell and smoke. Works with Air Purifier Compatible models Blue Pure 411+, 411, 411 Auto and MINI Minimum efficiency reporting values (merv) 0 Contaminants removed Dust Material Polyurethane Height 2.17 in Thickness 2.5 in Brand AMI PARTS Piece count 1 Model Blue Pure 411 Filter Compatibility Blueair