Designed For Air Purifiers: This PECO-HEPA Filter is compatible with the Air Mini and Air Mini+. Not compatible with the Air or Air Pro PECO and HEPA Filtration: Photo Electrochemical Oxidation (PECO) and HEPA technology work together at the molecular level to capture and destroy indoor air pollution to provide cleaner air Capture Small Particles: Destroy viruses and bacteria, and trap 99.97% of particles floating through the air in your home Light-Activated: Nanocatalytic filter media reacts to UV-A light to destroy bacteria at the molecular level