BestAir E2R Value 2 Pack Humidifier Replacement Wick Humidifier Filter for Emerson Models 6.5 x 5.5 x 11.5 . Our aluminum reinforcement design ensures an extended life and and also provides 150% more strength. Our Micro Free? feature and BestAir technology trap impurities and protects against bacteria microbes and other contaminants. The specially manufactured woven honeycomb pads allow for the maximum absorption of water. This helps to ensure the best possible humidity output.