GoKBNY 4-Pack AP300/K2/MK-AP01 Replacement Filter Compatible with LUNINO K2, TER Air MK-AP01 and DBFIT AP300 Air Purifiers, 3-in-1 Filtration System

["【Perfectly Compatible】--Compatible with LUNINO K2, TER Air MK-AP01 and DBFIT AP300 Air Purifiers.","【Package】--4-Pack filters bring you surprises.","【Activated Carbon Filter】--Highly effective activated carbon can help reduce indoor odors from smoke, cooking and pet odors.","【Life Time】--Please Replace the filter EVERY 3-4 months or depending the air quality and usage frequency.","【Satisfactory Service】--If you have any questions, you can contact us at any time and we will guarantee to provide services to your satisfaction."]