The 2 Pack Core 400S Replacement Filter is specifically designed for the LEVOIT Core 400S and Core 400S-P air purifiers. Made with H13 True HEPA Filter, Activated Carbon, and Nylon Prefilter, this filter effectively captures airborne particles and allergens, improving indoor air quality. With a MERV rating of 13 and filter media made of carbon, this Pleated filter is efficient in filtering out pollutants and ensuring clean air circulation. The pack includes 2 filters in white and green colors, providing a reliable solution for maintaining a healthy environment in your home.