WindFree Cooling - It gently and quietly disperses air through 23,000 micro air holes, so there is no unpleasant feeling of cold wind blowing. Its advanced airflow also cools a wider and larger area more evenly, and it uses 77% less energy than fast cooling (2.6kW to 7.1kW units only) · Quiet operation – Works much more smoothly and quietly. At its lowest level, it only generates 21dB(A) of sound, which is almost as quiet as a whisper · Pure & healthy air – Keeps air fresh, filtering airborne contaminants and allergens with a superior filter mesh and a unique antibacterial and antiviral coating. · Auto clean – Keep the inside of the air conditioner clean and hygienic · Control it anywhere – The Samsung Wi-Fi kit lets you control your climate system anytime, anywhere using Samsung SmartThings App. · R32 Refrigerant - Protect the planet by reducing the impact of climate change