P101-0003 CarrierA® Air Purifier Carbon Pre-Filters

From AirFilters.com

AirFilters.com Air purification can be crucial to your health, especially if you suffer from breathing problems like asthma or allergies. Air purifiers remove large amounts of air pollutants from the room, but they can become clogged easily, so sometimes you need some extra filtration. Pre-filters deliver extra filtration by removing large particulates that easily clog a filter, making the regular filter more efficient for trapping smaller, more harmful pollutants. This particular product is a 2-pack of replacement pre-filters that are specially designed to remove large particulates.