The 9, 000 BTU 21 SEER DuctlessAire mini split air conditioner with variable-speed DC inverter compressor provides an ultra-efficient, quiet, low-cost professional solution for your cooling and heating needs without requiring any duct work. This energy-efficient system is the ideal solution for open-room applications up to 350 sq. Ft., such as classrooms, sun rooms, open floor plan flexible-use spaces, man caves, home theaters, offices, studios, bedrooms, bonus rooms over the garage and even…