KeeTidy 2 Pack Model 15 Replacement Filters Compatible with MA Series Air Purifier H13 True HEPA and Activated Carbon 3 in 1 with PreFilter 5 L 1 W 10 H

COMPATIBILITY Designed specifically for MA Air Purifier Model 15 Series S1W1B1S2W2B2 Measures 5 L 1 W 10 H exactly fits your unit Please confirm size before ordering 3STAGE FILTRATION These model 15 replacement filters feature a 3stage filtration system that more effectively eliminates dust impurities and odors from the air filling your room with fresh FIRST LAYER PREFILTER The prefilter is made of saturated polyester material which is resistant to bending oil and acid alkali etc It can pretreat the air effectively intercept 10 PM particulate pollutants such as dust hair and fine debris and prolong the service life of the filter MIDDLE LAYER TRUE H13 FILTER These model 15 replacement filters made of electrostatic electret composite filter paper material it can capture 999 of the air particles as small as 01 microns and more effectively remove dust and PM25 so that breathing is easier THIRD LAYER ACTIVATED CARBON FILTER These model 15 replacement filters made of coconut shell activated carbon which can effectively remove formaldehyde and odor making the air fresher.