With an optimized system design, enjoy a quieter life with low noise operation from your Hisense Refrigerator RD20DR4SA. This product has a removable multiple-sealed door that can effectively isolate external heat and is also easy to clean. This product also has a multi-air flow system that distributes cold air evenly at each corner so that food quickly reaches the ideal storage temperature. FeaturesThe use of the no frost air cooling technology eliminates the hassle of manual frost removal and provides better freezing. The even air flow distribution allows foods to stay fresh longer in a no frost environment. The humidity of the crisper can be changed depending on the type of vegetable being stored. Reliable shelvesThe tempered glass provides a higher load-bearing capacity and is not easily broken as it is four to five times stronger than regular glass. However, if the glass does break, it is designed to not break to sharp shards like standard glass would, making it a much safer alternative. The fully adjustable glass shelving is structured so that when a beverage is split on the shelf, it will not touch the food stored on other shelves. Save energy and the environmentEnjoy the benefits of Hisense’s fluorine free design with high efficiency and low carbon emission. It adopts an environment-friendly, fluorine-free refrigerant and optimum pipeline design that provides refrigeration efficiency. The well-designed, exterior body and state-of-the-art ultra-micro pore foaming technology effectively reduces refrigeration