Foggy bathroom mirrors certainly are frustrating, as is the uncomfortable feeling that goes along with excess heat and humidity. A properly sized ventilation fan from NuTone will make all the difference. To begin, make sure the fan is properly sized. A good general rule for bathrooms with 8’ ceiling heights is to allow at least 1 cubic foot per minute (CFM) of ventilation for every square foot of room size for bathrooms under 100 square feet. For larger rooms, the recommendation is based on adding 50 CFM for each toilet, bathtub or shower and 100 CFM for jetted tubs. Generally speaking, the larger the CFM rating of the fan, the faster it will take care of any issues. To ensure that everyone in your home uses the fan, selecting a quiet model is always recommended.