This pre-cut pre-filter kit is the perfect addition to your Honeywell air purifier. With a filtration technology that uses carbon filter media, it can effectively remove impurities in the air for up to three months. The package contains four filters, ensuring that you have a steady supply for an entire year. This product is suitable for indoor air quality improvement and is an excellent addition to any home or office. The black color ensures it blends well with any decor. With the Honeywell brand, you are guaranteed quality and efficient performance. Upgrade your air purification system today with this genuine Honeywell OEM pre-filter kit.