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Ventilation & Indoor Air Quality
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Types of bathroom fans

Find the right fan to keep your bathroom fresh, dry and clean.

What is a Bathroom Exhaust Fan?

A bathroom exhaust fan removes humid air, odors, and moisture from your bathroom and pushes it outside — preventing mold, mildew, and foggy mirrors.

It’s one of the easiest ways to protect your home from excess humidity and keep the air feeling clean and comfortable.

Benefits of a Bathroom Fan:

  • Prevents mold and mildew growth

  • Reduces humidity and condensation

  • Clears odors and stale air

  • Protects walls, paint, and fixtures from moisture damage

Types of Bathroom Fans 

Bathroom fans come in various styles and designs, offering solutions tailored to specific needs beyond traditional ceiling or exhaust fans. Here’s an overview of some popular options: 

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Ceiling-Mounted Fans

Ceiling-mounted fans are the most common choice for bathrooms. Installed in the ceiling, they effectively remove moisture and odors, helping to maintain a fresh and comfortable environment. 
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Wall-mounted Fans

Wall-mounted fans are ideal when installing a fan in the ceiling isn’t practical. These fans are attached to an exterior wall, venting air directly outside. 
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Fans with Built-in Lights

Bathroom fans with integrated lights provide both ventilation and illumination in a single fixture. This option is ideal for creating a clean, modern look without the need for additional light fixtures. 
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Combination Fans

These fans combine multiple functions, such as ventilation, lighting, or heating, into one unit. They are perfect for maximizing functionality and saving space in the bathroom. 
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Inline Fans

Inline fans are located within the ductwork rather than directly in the bathroom. This design makes them a great option for quieter operation and high airflow capacity, while also allowing for hidden installation. 
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How to Choose the Right Bathroom Fan

✅ Match fan size to your room size:
Use about 1 CFM per square foot of bathroom space. (Example: a 70 sq ft bathroom needs a 70 CFM fan.)

✅ Look for quiet performance:
Fans under 1.0 sone are very quiet; under 0.5 sone are nearly silent.

✅ Consider smart features:

  • Humidity sensors: turn the fan on automatically when moisture rises.

  • Motion sensors: activate when someone enters the room.

  • Heaters or lights: add warmth and brightness in one fixture.

✅ Always vent outside:
Avoid venting into an attic — it can cause mold and damage insulation


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