Replacement Filter compatibility with APH260 and APH320 Air Purifier, 4-in-1 Filtration System, 2 Pack

4-in-1 Multi-layer Filtration System: Adopts a multi-stage composite filtration structure to achieve all-round air purification, effectively solving common indoor air problems and bringing fresh and clean breathing air. | Efficient Large Particle Interception: The primary filter layer blocks visible large impurities such as hair, lint and coarse dust, preliminarily cleans the air and reduces the working load of the inner filter screen to extend the service life. | Silver Ion Purification Layer: Built with a special silver ion layer that reacts with harmful particulate pollutants, assists in deep air purification, improves turbid indoor air and creates a healthier living environment. | Particulate filter layer: The high-efficiency particulate filter layer traps tiny particulate contaminants including pet dander, fine dust, and suspended particles, Effectively filters impurities floating indoors. | Activated Carbon Filter Layer: The high-quality activated carbon layer physically adsorbs smoke, cooking fumes and VOCs, keeping the indoor air fresh and clean at all times.