SEER stands for Seasonal Energy Efficiency Rating. The higher the rating, the more efficiently the air conditioner operates. The federal government requires a minimum SEER of 13 out of a maximum rating of 20. Higher-efficiency air conditioners save energy and cause less pollution.
Consumers will also save money on electric bills. New air conditioners are up to 70 percent more efficient than the current average. This can yield significant savings for consumers over the service life of their air conditioner.