The standard filter of the Xiaomi Smart Pet Care Air Purifier does not include a sterilization function. However, it is equipped with an advanced activated carbon filter that plays a crucial role in purifying the air. This activated carbon is specifically designed to absorb and remove various odors, including those from pet waste, body odors, and other environmental pollutants. While it can not sterilize the air, the filter effectively enhances air quality by capturing harmful particles, helping to maintain a fresh and healthy environment for both you and your pets.