Keep your air clean and fresh with this high-quality air filter compatible with Levoit Core 300 & PuroAir 240 Air Purifier. Made with True HEPA filtration technology, it effectively captures 99.97% of airborne particles, including dust, pollen, pet dander, and more. The filter media is made of carbon, which is dust-resistant and easy to install. With a MERV Rating of 13, this 3-in-1 air filter is perfect for any air purifier application. It has a filter life of 6 months and comes in a pack of 2 white filters. The Smart Home Protocol is Wi-Fi, making it easy to control your air purifier with your smartphone. Get clean and healthy air with this NSA brand air filter, model Core 400S.