1、TRUE FIT COMPATIBILITY: Our FC 35S1 filter element is specifically designed to fit and function with for KJ350G S1 S1Y S1W, ensuring maximum filtration efficiency. 2、PREMIUM FILTER: Our FC 35S1 filter element is made from premium materials to ensure long lasting performance and effective air cleaning. 3、EFFECTIVE ODOR ELIMINATION: Our filter element features activated carbon, which effectively removes odors and VOCs from the air in your home, leaving your air healthier and cleaner. Replace your filter regularly to keep clean. 4、TIGHT SEALING: Our air filter element is designed with an air tight sealing to prevent air leakages, ensuring maximum filtration efficiency and extending the life of your air clean machine. 5、Easy to Install: Our filter is designed for easy installation, and can be replaced in just a few minutes with no special tools required, providing you with a hassle free experience.