Panasonic WhisperGreen Bathroom Fan with DC Motor - FV-05VK3
50 CFM: 7.5 Watts
12.4 CFM/Watt @ .1" Static Presure / 7.7 CFM/Watt @.25" Static Pressure
< 0.3 sones
6 Year Warranty on DC Motor

Duct Diameter (inches): 4"
Mounting Opening (inches sq.): 10 7/8"
Grille Size (inches sq.): 13"

Constant CFM Performance
This WhisperGreenT model features built-in intelligence called SmartFlowT Optimum CFM Technology. This unique "electronic-brain" lets the fan do what was once thought to be impossible: perform at a constant CFM regardless of elbows and other factors that might hinder performance. Basically, when a WhisperGreenT fan faces static pressure, its speed is automatically increased to ensure that the desired CFM is actually achieved. This allows the fan to perform as rated and makes for easier installation because the installer no longer has to worry as much about compromising the fan's performance.

DC Brushless Motor
Panasonic's DC brushless motor provides unparalleled energy efficiency with its magnetic rotor and print circuit board. The magnetic rotor prevents energy loss while the print circuit board incorporates a unique IC chip which monitors and directs the RPM of the fan blade. The combination of these two unique features allows the DC motor to have higher energy efficiency than an AC motor.

Quiet Motor Means Quiet Operation
Panasonic is the first ventilation fan manufacturer to incorporate a DC motor in residential mechanical ventilation fans. The WhisperGreenT series incorporates a totally enclosed DC motor designed for extremely quiet, energy-efficient operation. The permanently lubricated motor is also engineered for trouble-free, continuous run for several years.

ENERGY STARŽ-Qualified for Energy Savings
ENERGY STARŽ-qualified products feature super-quiet operation and high CFM-to-Watt efficiency. The ENERGY STAR program was created to help consumers identify products that can save them money and protect the environment by saving energy. As an ENERGY STAR partner, all of our fans are ENERGY STAR-qualified and labeled accordingly.

FEATURES:
SmartFlowT system for constant CFM output
Super energy-efficient DC motor
Ultra-quiet operation
ENERGY STARŽ-qualified
Totally enclosed motor for long life
Easy installation (hanger bar system)
Rustproof paint treatment on galvanized housing
Built-in damper to prevent backdraft
UL Listed for tub/shower enclosure when used with a GFCI branch circuit wire
Thermal Fuse Protection


SPECIFICATIONS:
Air Volume (CFM)   
50 at .10" statistic pressure
54 at .25" statistic pressure
Noise (sones)  <0.3 at .10" statistic pressure
Power Consumption (Watts)  
4.3 at .10" statistic pressure
7.5 at .25" statistic pressure
Energy Efficiency (CFMs/Watt)  
12.4  at .10" statistic pressure
7.7 at .25" statistic pressure
Speed  
749 at .10" statistic pressure
1101 at .25" statistic pressure
Current  
.05 at .10" statistic pressure
.09 at .25" statistic pressure
Power Rating (V/Hz) - 120/60
Motor Type - DC
Type of Motor Bearing - Ball
Thermal Fuse Protection - Yes
Blower Wheel Type - Sirocco
Energy Star Qualified - Yes
High/Low Delay Timer - No
SmartFlow Optimum CFM Technology - Yes
UL Tub/Shower Enclosure - Yes
Washington State VIAQ Code- Yes
California Title 24 Compliant- Yes
Mfg in ISO 9001 Certified Facility-Yes