This pack of three replacement wick filters is designed for use with Holmes humidifiers, and is perfect for ensuring that the air in your home stays clean and fresh. The filters are treated with antimicrobial protection and baking soda, which helps to eliminate odors and keep your humidifier running smoothly. With a filtration technology that is both effective and safe, these filters are a must-have for anyone who wants to improve the quality of air in their home. So if you're looking for a reliable, high-quality replacement filter for your Holmes humidifier, look no further than the HWF100-UC3-2 Replacement Wick Filter.