The WhisperValue® DC exhaust fan is the ultimate low-profile, spot ventilation solution ideal for residential construction, including single-family homes, multi-family buildings, and manufactured homes. Featuring a revolutionary ECM motor, SmartFlow™ technology, and Multi-Speed Control in an ultra-slim design, it is the lowest-profile ENERGY STAR®-rated fan, perfect for tight spaces and continuous ventilation requirements.

The fan stands out with two key features: Multi-Speed Control for ASHRAE 62.2 Compliance, allowing continuous operation at a lower preset level (0, 30-70 CFM) and boosting to 80 or 100 CFM when activated, and the Pick-A-Flow® Airflow Selector, which lets you customize the airflow to 80, or 100 CFM. Together, these features make it easy to meet diverse ventilation needs, ensure code compliance, and minimize callbacks.

Key Features

• Customizable Airflow with Pick-A-Flow® Selector: Select the CFM that suits your space—80, or 100 CFM—for precision airflow and optimal performance
• SmartFlow™ Technology: Automatically adjusts the fan’s speed to maintain peak performance, saving energy and ensuring the best CFM output
• Lowest Profile Design: With a housing depth of just 3-3/8", this is the slimmest ENERGY STAR® certified fan available, making it perfect for tight spaces and easy installation, even in 2" x 4" stud walls
• Cost-Effective Wall Installation: Wall-mounted installation eliminates the need for expensive radiation dampers in fire-rated ceilings, making it an ideal choice for multi-family projects
• Warranty: 6 years ECM Motor, 3 years all other parts

WhisperValue® DC Fan With Continuous Ventilation

WhisperValue® DC Fan is the perfect multi-family solution. It is also ideal for single family and manufactured homes. As the lowest-profile ENERGY STAR®-certified fan available, it fits perfectly in a 2"x4" stud bay. The low profile, 3-3/8” housing depth and unique L-shaped bracket allow this fan to be installed virtually anywhere - in ceilings or walls.

High Performance ECM Motor

The revolutionary ECM motor provides the best performing, most energy- efficient motor available. Intelligent, self-adjusting SmartFlow™ technology senses the amount of resistance in a duct run and automatically adjusts the fan speed to deliver the optimal CFM output, even in complicated duct runs. Featuring SmartFlow™ technology, the Panasonic ECM motor moves more air, uses less energy and lasts longer than other motors in its category.

Pick-A-Flow® Airflow Technology

Built-in Pick-A-Flow® airflow selector provides the unique ability to select your required airflow (80/100 CFM) with the simple flip of a switch.

Multi-Speed Control for ASHRAE 62.2 Compliance

Multi-Speed Control for ASHRAE 62.2 Compliance allows you to select the proper CFM settings to satisfy ASHRAE 62.2 continuous ventilation requirements. The fan runs continuously at a preset lower level (0, 30-70, in 10 CFM increments), then elevates to a maximum level of operation (80 or 100 CFM) when the wall switch is turned on.

Lowest Profile Design For Installation Versatility

With a 3-3/8" housing depth, the WhisperValue® DC fan is the slimmest design available. The extremely thin profile opens up options for where you can install the fan which is UL listed for ceiling or wall mount. Installing a vent fan in a wall means that you won't need to cut a hole in the fire-rated ceiling and then buy a radiation damper to meet fire-resistance requirements in the building code. In a multi-family housing development, this means big savings.

Long Life and Lower Operating Costs

Whether you are running a household or a business, you should not have to replace little things like a vent fan. Panasonic fans use less energy, move larger volumes of air and run cooler, which means they last longer. Our motors are equipped with a thermal-cutoff fuse, greatly reducing the likelihood of overheating and motor failure.

Fast, Flexible, Professional Installations

The unique L-shaped bracket simplifies installation and provides strong support. The L-bracket is interchangeable to be positioned to either the left- or right side stud for optimal fan placement. Optional 4 in. Oval to 3 in. Round Duct Adapter(FV-VS43R-sold separately) is available to give you flexibility in duct layout and design. Panasonic fans are also UL listed for tub/shower enclosure (just install them on a GFCI-protected circuit). With these great features, your installation options open up.

ENERGY STAR® Certified For Energy Savings

Panasonic ventilation fans are ENERGY STAR® certified, where guidelines exist. They have been engineered to comply with the ENERGY STAR 4.0 requirement for increased efficiency (CFM/Watt), ensuring low cost, energy efficient operation. ENERGY STAR vent fans meet strict parameters set by the US Environmental Protection Agency (EPA). They provide better efficiency and comfort with less noise, and feature high performance motors and improved blade design, providing better performance and longer life.