LG Dedicated Outdoor Air System (DOAS) is a system that brings fresh outdoor air indoors to improve air quality without sacrificing energy efficiency. This system is designed specifically for LG VRF systems and is insulated to decrease heat flow and sound levels. The LG DOAS can be used in a variety of settings such as schools, offices, retail stores and multi-family housing. Through LG’s technology and design, the system can save energy, ceiling space and install cost.