Nordic Pure’s 16x25x3 Air Bear Cub Replacement filter is meant to replace the filter for any system that requires a 3” depth. Unlike other filters where the nominal and actual sizes differ by a fraction of an inch, the Air Bear Cub Replacement has a nominal and actual depth of 3 inches exactly. Keep that measurement in mind when you are measuring your filter’s housing to determine what filter is best for you. Nordic Pure 3” MERV 13 Air Bear Cub Replacement filters are made of electrostatically charged synthetic materials that are ideal to reduce airborne contaminants in your home or business. Each time air passes through a Nordic Pure pleated furnace filter, airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, and tobacco and fireplace smoke are captured and removed.
The effective life of your air filter depends on the inside and outside conditions in which you live. We recommend that you change your air filter every 3-6 months to maintain maximum efficiency and indoor air quality.