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For a 12x12 room, a fan between 36" and 50" will work, as it falls in the range for spaces up to 144 square feet. These size fans provide adequate air circulation and ensure a comfortable environment without being overpowering. Even better, they come in a broad range of styles, offering aesthetics and functionality, making them suitable choices for maintaining an ideal room temperature and enhancing overall comfort.

You should generally avoid using WD-40 on a ceiling fan. While it might quiet a squeak temporarily, it is primarily an anti-corrosion and water displacement agent, not a true lubricant, and can damage the fan's components over time. Most modern ceiling fans have sealed bearings and do not require oiling, so a squeak may indicate another issue. For fans that do require lubrication, it is better to use a light machine oil, 30-weight motor oil, or a lubricant specifically designed for ceiling fans.

Most people describe the sound of an unbalanced ceiling fan as a buzzing or grinding noise. This is caused by the parts of the fan rubbing or rattling against each other as the blades spin. However, a wobbling fan can also make squeaking, rattling, or thumping sounds, depending on the severity of the balance issue.

The direction your ceiling fan spins helps create comfortable airflow in your home and can also help cut down on energy costs. 

During summer, your ceiling fan should spin counterclockwise. This will push cooler air downward in a column and help lower your room’s air temperature. In the winter, set your ceiling fan to spin clockwise and at the lowest speed setting. This will pull cool air upwards, displacing the warm air that pools towards the top of your ceiling and bringing it down towards the floor.