Many of the energy-efficient features in room air conditioners also offer greater convenience and comfort:

Variable fan speeds: More speed settings give you greater control on air flow. The lower settings also help save money.

Digital temperature control: The ability to control temperature by degrees—instead of with HIGH or LOW settings—allows for more comfort and wastes less energy.

Programmable thermostat: You may want to pay a little more for an AC unit that lets you program desired settings for different times of the day and night.

Easy-to-access filters: Slide-out filters are easy to clean and remove dust and other allergens from the air. Regular maintenance will extend the service life of your air conditioner and help it operate at full efficiency.

Sleep setting/energy-saving setting: The unit operates at a very low setting, making the room more comfortable for sleeping while conserving energy.

Timers: Timers are a simpler and less costly alternative to programmable thermostats. Just set the time you want the AC to start or stop. Timers let you come home to a house that already is cool, without continuously running the air conditioner while you're away.
 

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