Designed as a pre-filter for Fan Coil units and ventilation devices has been done. It is Aluminum Framed. It uses 3 layers NanoFiber filter media. It is the best technology available in the world. It is designed for clean, healthy air in ventilation systems. While it provides high permeability against air, gas and water vapor, it prevents mold and virus, pollen, bacteria, other pathogens. filters prevent it from spreading. Washable. Particle capture takes place mechanically. The filter does not contain chemicals. It was born as a result of more than *0 years of research. It turns the used ventilation and air conditioning system into an air cleaner. Fan-Coil Units, VAM, Grilles etc. Used in all air conditioning systems. Filters all particles and pathogens, including all viruses, bacteria, smoke, pollen. Test approved by the world's best laboratories such as TUV, NELSON, EMPA, SUZ, TEC, WIPO. Allows only useful air to pass through. Easily cleaned and washed with water. It has a long service life of over 5 years. ***0 Series Aluminum Framed. It can be produced in any size. It is produced with patented Nanofiber high technology.