The 6PK Filtrete Clean Living 24X24X1 Air Filter MPR 300 MERV 5 is a high-quality air filter designed for use in air conditioners and furnaces. Manufactured by 3M under the Filtrete brand, this filter features electrostatic filtration technology to effectively capture airborne particles and improve indoor air quality. With a MERV rating of 5, this filter is compatible with furnaces and lasts for up to 3 months. This pack includes 6 filters, making it convenient for regular replacement and ensuring continuous clean air circulation in your home.