This replacement filter for the Spear & Jackson 48845 2 in 1 Air Purifier and Dehumidifier will continue to clean the air in your home, as well as removing excess moisture from the air to improve air quality. This single replacement filter will efficiently operate for up to 2200 hours, which is the equivalent of 6 months if used for 8 hours a night. This HEPA replacement filter traps harmful particles such as pollen, pet dander, dust mites, and smoke, & can trap pollutants which in-turn should assist with allergy relief. Use this filter in your 2 in 1 Air Purifier and Dehumidifier from Spear & Jackson. By reducing the level of humidity and moisture, the dehumidifier will help to reduce allergy triggers and deter household pests while also improving your air quality.