Ebay offers Refurbished Midea Duo 12,000-BTU Portable Air Conditioner for $250 with free shipping.

Product Description:
The Midea DUO Smart 12,000 BTU SACC 3-in-1 inverter portable air conditioner has the power to cool, dehumidify and circulate air in spaces up to 550 Sq. Ft. with a unique hose-in-hose design that delivers 20% better cooling. In addition to that, this product is engineered with variable-speed inverter technology to achieve more than 40% in energy savings compared to U.S. federal standards. Smart functions include a smartphone app to control your AC through Wi-Fi from anywhere, at home, through the cloud, or even using the Google Assistant or Amazon Alexa. For added convenience, the 4-wheel design and attached hose and window kit make installation and set-up easy.

• 12,000 BTU DOE: 3-in-1 Comfort Cools, Ventilates, and Dehumidifies
• Inverter Technology Delivers up to 40% Energy Savings Compared to US Federal Standard
• Matter Certified Unit with App & Voice Control: Control From Anywhere with the Smart Home App