Best Bathroom Fans for Large Bathrooms: A Comprehensive Guide
When it comes to large bathrooms, choosing the right bathroom fan is crucial for maintaining comfort, safety, and air quality. Bathroom fans not only help to remove moisture and odors but also prevent the growth of mold and mildew. In this guide, we'll explore the best bathroom fans for large bathrooms, highlighting their features, benefits, and installation considerations.
Understanding Bathroom Fan CFM Ratings
Before delving into the best bathroom fans, it's essential to understand their capacity to move air, measured in cubic feet per minute (CFM). For large bathrooms, you'll need a fan with a higher CFM rating to effectively remove moisture and odors. As a general rule, a bathroom fan should exchange the air in your bathroom at least 8 times per hour. Use the following formula to calculate the required CFM:
Bathroom square footage x 8 = Minimum CFM required

Example:
For a 100 sq. ft. bathroom, you would need a fan with a CFM rating of at least 800.
Top Bathroom Fans for Large Bathrooms
1. Broan-NuTone 690-ES
- CFM: 80
- Noise level: 0.8 sones
- Features: Energy Star certified, humidity sensing, and timer
The Broan-NuTone 690-ES is an excellent choice for large bathrooms, offering a powerful performance with a noise level that won't disturb your relaxation. Its humidity sensing feature and timer ensure optimal operation and energy efficiency.
2. Panasonic FV-08V2
- CFM: 80
- Noise level: 0.3 sones
- Features: Energy Star certified, built-in motion sensor, and night light
The Panasonic FV-08V2 is a high-performing fan that operates quietly, making it an ideal choice for large bathrooms. Its built-in motion sensor and night light provide added convenience and safety.

3. Delta Breez SLM90
- CFM: 90
- Noise level: 1.5 sones
- Features: Energy Star certified, built-in humidity sensor, and timer
The Delta Breez SLM90 is a powerful fan designed for large bathrooms, offering a high CFM rating and energy-efficient operation. Its built-in humidity sensor and timer ensure optimal performance and comfort.
Installation Considerations
When installing a bathroom fan in a large bathroom, consider the following:
- Vent the fan directly to the outdoors, not into an attic or soffit.
- Ensure the fan is installed in the correct location, typically near the shower or bathtub.
- Consider installing a fan with a built-in light or a separate light fixture to provide adequate lighting.
- Follow local building codes and manufacturer instructions for proper installation.
Comparing the Best Bathroom Fans for Large Bathrooms
| Model | CFM | Noise Level (sones) | Features |
|---|---|---|---|
| Broan-NuTone 690-ES | 80 | 0.8 | Humidity sensing, timer, Energy Star certified |
| Panasonic FV-08V2 | 80 | 0.3 | Built-in motion sensor, night light, Energy Star certified |
| Delta Breez SLM90 | 90 | 1.5 | Built-in humidity sensor, timer, Energy Star certified |
When selecting the best bathroom fan for your large bathroom, consider your specific needs, budget, and local building codes. By choosing a high-quality fan with an appropriate CFM rating and convenient features, you'll ensure optimal performance and comfort in your bathroom.