Why do we need a bathroom fan?
The first and foremost purpose of a Bathroom Fan is moisture control. Bathrooms usually go through periods of high humidity, especially after hot shower and bath usage. This excess moisture provides a perfect environment for mold and mildew growth. Mold is a risk to health and contributes to destruction of your bathroom walls, ceilings, and fixtures. The bathroom exhaust fan works by expelling moisture-laden air, limiting or preventing mold growth and creating healthier conditions.
Bad odors can develop due to any number of things-whether it be from use of the toilet or the presence of volatile organic compounds out gassed from cleaning agents. However, the working of the bathroom fan should quickly withdraw any objectionable odors from the space, thereby improving indoor air quality and making the bathroom more pleasant to enter. Keeping any odor under tight control will prevent them from spreading rapidly into other areas of the house, thereby enhancing comfort in the living space.
Indoor air quality is important to maintain a healthy life. If the bathroom is somehow not ventilated properly, it will contribute to poor air quality. Exhaust Fans help in maintaining air circulation in the bathrooms by expelling the unhealthy air and replacing it with fresh air, thereby decreasing airborne contaminants such as dust, fungal spores, and chemical fumes from personal care products, and keeping the bathroom air good to breathe.
Excess moisture encourages mold development, which could cause extensive structural damage to any bathroom. Wooden frames, drywall, and paint are all sustained by prolonged exposure to high humidity. Ventilation issues typically arise with warping, peeling, and water staining. The installation of an exhaust fan in a bathroom thus helps homeowners reduce moisture levels within the bathroom, thereby protecting their investment in the aesthetic and functional aspects of the room.
Humidity makes it generally muggy in a bathroom. The bathroom fan serves to keep humidity at a balanced level so that the space feels fresher and comfortable. This is particularly critical to ensure warmth in a climate or season where humidity is higher. Thoroughly ventilated bathrooms are pleasurable on all occasions-every day, for hygienic activities, and on others for pure relaxation.
Several building codes and regulations specify the need for bathroom exhaust fan installation, especially where there aren't operable windows for natural ventilation. Adherence to these regulations ensures that the subject property conforms to safety standards, which becomes particularly relevant in pursuits of buying or selling a home. The presence of a bathroom fan can improve property value and appeal to potential buyers concerned with modernity and functionality.

In conclusion, a bathroom fan is a must-have; it greatly improves air quality and prevents structural damage, controls moisture, and provides comfort and health. Bathroom fans are so important because they address a myriad of issues that arise in a bathroom environment as a matter of course. Investing in a good bathroom fan is thus an investment in protecting the home and its inhabitants for the long term. Any planning of bathroom upgrades or renovations should thus prioritize the installation or maintenance of a good bathroom fan.