High quality First layer electrostatic dust filters capture charged dust, pollen, and other allergens Second layer UP photocatalytic titanium filters adsorb and decompose odors Filter: Folds filter BAC006A4C, BAC017A4C Compatible models: MC70KMV2 series, MCK57LMV2 series, MC709MV2 MC70KMV2-N, MC70KMV2-R, MC70KMV2-A, MC70KMV2-K, MCK57LMV2-W, MCK57LMV2-R, MCK57LMV2-K, MCK57LMV2-A, MCK57LMV2-N, MC709MV2 Color: Blue Material: Filter cotton Package Contents: 4 x Purifier filter Only the above package content; other products are not included Note: Light reflection and different displays may cause the color of the item to vary slightly from the actual product. Measurement allowed error is +/- 1-3 cm