LifeSupplyUSA 4 Pack Replacement Air Purifier Filter fits ALL Blueair 200 & 300 Series Models 201, 210B, 203, 250E, 200PF, 201PF 4 True HEPA Filters Fits: Blueair 200PF, 201, 201PF, 203, 203C, 205C, 210B, 215B, 250E, 270, 270E, 303 air purifiers 2.2 x 15 x 18 inches ; 1.5 pounds Brand New Individually Sealed - By LifeSupplyUSA