Compatible with Purivortex AC400 This is a set of 2 replacement filters for air purifiers. ・Compatible with Purivortex AC400 ・Imported product ・Unused / Recommended for spares ・Can be used as a replacement for the genuine product Can be installed without any problems in terms of size and shape. As it is a consumable item, it is ideal for those who prioritize cost performance or for early replacement stock.