Innovative comfort M-Series systems by Mitsubishi Electric have the features, functions and innovative engineering to meet and exceed the needs of Canadian families. Their products are engineered to deliver excellent heating performance even when the outdoor temperature plummets to -25°C and beyond. With the widest Energy Star qualified lineup, including some of the highest SEER ratings in the industry, M-Series systems are also highly energy efficient. All of this is achieved with indoor units operating at sound levels quieter than a whisper, delivering heating and cooling in a peaceful and elegant manner. Available in ducted or ductless models, you can trust Mr. Slim M-Series systems to deliver years of reliable comfort and satisfaction, includes reliability-enhancing functions and automatically restarts after a service interruption for your convenience.