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What is in ERV or Energy Recovery Ventilator?
An ERV is a home ventilation device that improves air quality without sacrificing home energy efficiency. It continually runs to supply fresh air, ventilate stale air, and manage humidity. The ERV captures heat and energy from incoming or outgoing air, depending on the climate and season, to reduce the load on your home's heating and cooling system.
What components are included in the box of the TwinFresh Expert?
The Vents-US TwinFresh Expert Ductless ERV comes with the remote control, the outer ventilation hood, the inner control panel with air shutters, the air duct, and the ceramic core heat exchanger with MERV filters. The unit can be plugged into an outlet or hard-wired by an electrician.
Through this hole, you place a single air duct that contains a ceramic heat exchanger and MERV filter. The inside wall contains the fan and control panel, and the outside wall has the ventilation hood. There are many advantages of going ductless, including:
- An easier installation
- Easier maintenance, and
- Less unnecessary loss of hot or cold.
Ventilation & Air
Find a wide variety of researched and vetted home improvement products that help address your home's ventilation and air quality needs.

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How does the Vents-US TwinFresh Ductless ERV work?
In Regeneration Mode, the TwinFresh Expert removes stale inside air, brings in fresh air from outside, and even helps decrease the load on your home's heating and air conditioning systems.
Does the TwinFresh Expert heat and cool?
No, the TwinFresh Expert doesn’t heat or cool, but it stabilizes the intake air to room temperature to reduce extra energy load. Compare this to other ventilation sources like extraction fans and open windows, where you lose precious hot and cold air when you need it.
How big of a room will the TwinFresh Expert serve?
One unit will comfortably provide fresh, conditioned air for a 500 sq/ft room. Some homeowners use a handful of TwinFresh Experts that work together to ventilate their entire home. This unit shines as a standalone unit to bring fresh air into places that don’t usually get adequate ventilation, like bedrooms, basement living spaces, or detached offices.
Is the TwinFresh Expert a dehumidifier?
TwinFresh Experts on Regeneration Mode dehumidify the air to provide comfort. But if your room has a moisture problem with humidity levels around 60-70%, you need a stand-alone dehumidifier to tackle that problem.
How loud is the Vents-US TwinFresh Expert Ductless ERV?
When standing 10ft away from the TwinFresh Expert, it produces 0.2 sones at the slowest fan speed and up to 0.5 sones at the fastest. For comparison's sake, 1 sone is the sound of a whisper or a refrigerator running, so the TwinFresh Expert delivers as far as noise is concerned. It’s so quiet because it’s just a fan, filter, and ceramic core.
Rise
At Rise, we strive to make sustainable home improvement easy and accessible for everyone. Whether you're building or renovating, our thoroughly vetted building products will help you reduce your carbon footprint, lower energy costs, and create a more sustainable living or working environment.