Aros Smart Window Air Conditioner / Do not go by its’ luxurious looks, the Aros Smart window air conditioner is actually going to be of great use if you’re on a tight budget. http://thegadgetflow.com/portfolio/aros-smart-window-air-conditioner/
Kleen-Screen™ Air Conditioner Coil Filter -- improve energy efficiency; protect A/C unit from 95% of most debris that can clog your air conditioner condensor. Easy one-person installation. Dust to clean. About $30.00.