Fitness:Coway AP1512HHFeatures:Universal oder eliminator replacement carbon pre-filter designed for Coway AP1512HHHelps trap larger particles like dust, lint, fibers, pet furEasy to install it without cutting any moreEffective air pre-filter removes common household odors, keeps the air in your home freshDepending on where it is and how heavy the use is, the pre-filter needs changing every 2-3 monthsDisclaimer: Our replacement filter are in No Way connected / affiliated to the Coway, our products are not Coway products.