and high quality The first layer electrostatic dust filters, capturing the charged dust, pollen and other allergens. The second layer UP photo catalytic titanium filters, adsorption and decomposition odor, filter :folds filter BAC006A4C, BAC017A4C Applicable models : MC70KMV2 series and MCK57LMV2 series MC709MV2 MC70KMV2-N MC70KMV2-R MC70KMV2-A MC70KMV2-K, MCK57LMV2-W MCK57LMV2-RMCK57LMV2-K MCK57LMV2-A MCK57LMV2-N MC709MV2 Technical standard Filtration Efficiency : 90% for 0.3 m Nacl (H10) Uint Mass Deviation : 175 g/ Resistance : 8 pa Permeability :700 L/.s Color: blue Material: PP+PET Package Contents: 1 x filter Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.