Panasonic
Panasonic WhisperFit Bathroom Fan
Best retrofit solution for homeowners upgrading bathroom ventilation and lighting.
The Panasonic WhisperFit DC Fan is an ideal retrofit solution for your bathroom ventilation needs. Featuring a revolutionary ECM motor with SmartFlow Technology, it ensures optimal CFM output. The built-in Pick-A-Flow airflow selector allows you to easily choose between 50, 80, or 110 CFM with a simple switch flip. This lighted model includes a 10W dimmable LED chip panel and a 1W LED night light for energy-efficient illumination. Its single-hinged Flex-Z Fast bracket ensures flexible, fast, and easy installation, fitting into 2x6 joist sizes or larger.
$213.99
Owner Satisfaction
4.6
/ 5
Category Rank
68
/ 347
#68 in Ventilation Fans
Price vs Category Average
-9%
Below average
Motor Type
ECM
/ ECM
Who it's for
- Homeowners seeking a peaceful and quiet bathroom environment
- Renovators needing a simple solution for existing ceiling openings
- Families wanting to prevent mold and mildew buildup
Who should skip it
- Budget-conscious shoppers looking for inexpensive fan alternatives
- Design enthusiasts prioritizing high-end or modern aesthetic finishes
- Novice DIYers uncomfortable with overhead electrical or ceiling work
Performance breakdown
Installation Flexibility
The Flex-Z Fast bracket makes retrofitting into existing joists remarkably simple.
Airflow Versatility
Pick-A-Flow technology allows precise CFM adjustments for any bathroom size.
Energy Efficiency
Advanced ECM motor technology minimizes power consumption while maintaining high performance.
Lighting Utility
Integrated dimmable LED and night light provide functional, energy-efficient bathroom illumination.
Compact Design
Low-profile housing fits seamlessly into tight 2x6 ceiling joist spaces.
Regulatory Compliance
Meets rigorous ASHRAE and Title 24 standards for modern home ventilation.
Key Specs
Motor Type
ECM
Airflow
50, 80, or 110 CFM
Duct Size
3.1" - 4"
Mounting Type
Ceiling Mount
Control Type
Pick-A-Flow airflow selector
Light
Yes, 10W dimmable LED chip panel with 1W LED night light
Housing Depth
5-5/8"
Certifications
ASHRAE 62.2, LEED, IAP, California Title 24
Features
- Revolutionary ECM motor with SmartFlow Technology
- Built-in Pick-A-Flow airflow selector (50, 80, 110 CFM)
- Integrated dimmable LED light and night light
- Single-hinged Flex-Z Fast bracket for easy installation
- Low profile housing fits 2x6 joist size
- Complies with latest codes and standards
What customers say
Customers consistently praise the Panasonic WhisperFit Bathroom Fan for its remarkably quiet operation, significantly enhancing bathroom comfort. Many reviewers highlight the straightforward installation process, making it a popular choice for DIY enthusiasts and professionals alike. This combination of superior quietness and user friendly setup establishes the product as a highly regarded option for those seeking an effective and unobtrusive ventilation solution. Its reliable performance further solidifies its positive reception among users.
Know before you buy
Yes, the WhisperFit is specifically designed for 2x6 joist construction. Its low-profile housing and Flex-Z Fast bracket make it an ideal choice for retrofitting into tighter ceiling spaces.
The fan features a built-in switch that allows you to toggle between 50, 80, or 110 CFM. You can select your preferred airflow level during installation to match the size of your bathroom and your specific ventilation needs.
Yes, the 10W LED panel is dimmable, allowing you to adjust the brightness to your preference. It also includes a separate 1W LED night light for low-level illumination.
SmartFlow technology uses an ECM motor to automatically adjust the fan's speed to maintain the selected CFM, even if the duct run is complex. This ensures you get consistent, reliable ventilation regardless of external static pressure.
Yes, the Panasonic WhisperFit is compliant with ASHRAE 62.2, LEED, and California Title 24 standards. It is designed to meet the latest energy efficiency and ventilation requirements for modern homes.
This fan is compatible with 3-inch to 4-inch duct sizes. The flexible ducting options make it easier to connect to existing ventilation systems during a retrofit.
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$214