{{product.name}} Replacement combination Pre-Filter for the Erik650A air purifier. Can be used with any Erik model. Has a high efficiency mini-pleated air filter media and 3.5+ pounds of our proprietary treated activated carbon for the removal of a wide spectrum of gases and odors. This filter should be replaced with every 12 months of use. **ARB approved for gas removal** Filter Life: 12 months Filter Media: 45 sq ft Carbon Filter Media: 3.5 lb This filter has a MERV15 pleated filter and 3.5 pounds of our proprietary treated granular activated carbon for the removal of most particulates and a wide range of gases including smoke, VOC's, formaldehyde, methane, benzene and many more. This is a combination filter and in 2023 the sequence of the air filter media and carbon were changed so the air passes through the air filter first. Specialty Carbon: 3.5 pounds Filter Life: 1 year (continuous use) Frame Material: Plastic Dimensions: 12"x24"x4" Weight: 5 lbs