The Vents TwinFresh Comfo RA1-50-2 Ductless ERV provides fresh, filtered air without the need for traditional ductwork. One of our top-selling ductless Energy Recovery Ventilators, it's an ideal ventilation solution for bedrooms, home offices, basements, tiny homes, additions, and other spaces up to 500 sq. ft.
With up to 88% energy recovery efficiency, the TwinFresh Comfo helps bring fresh outdoor air inside while recovering energy from outgoing stale air, helping improve indoor air quality without unnecessarily increasing heating or cooling loads.
Key Features at a Glance:
- Up to 30 CFM airflow
- Ideal for rooms up to 500 sq. ft.
- Up to 88% energy recovery efficiency
- Fresh, filtered air without ductwork
- Ultra-quiet operation from 0.2 sones
- Includes washable MERV 5 filters
- Wireless remote control included
- Stainless steel exterior hood
- Continuous-duty operation
- Frost- and condensate-free operation
- Fits walls from 4-3/4" to 18" thick
- ETL Certified
- Complete kit - everything you need to get started is included.
- 2-year warranty
Energy-Efficient Fresh Air Ventilation
The TwinFresh Comfo uses an internal ceramic energy recovery core to capture energy from outgoing indoor air.
During colder weather, heat from the outgoing air is stored within the ceramic core and transferred to incoming fresh air. During warmer weather, the process helps reduce the temperature of incoming outdoor air before it enters the room.
This energy recovery process helps provide continuous fresh-air ventilation while reducing the additional load placed on your home's heating and cooling system.
Quiet Ductless Ventilation
Because the TwinFresh Comfo installs directly through an exterior wall, there is no need to install a conventional ducted ventilation system.
Operating at approximately 0.2 to 0.5 sones at 10 ft, the unit provides quiet ventilation suitable for bedrooms, offices, living spaces, and other areas where noise matters.
The TwinFresh Comfo delivers a maximum airflow of 30 CFM in ventilation mode and is rated for continuous operation.
Designed for Flexible Installation
The telescoping wall sleeve accommodates wall thicknesses from approximately 4-3/4" to 18", making the TwinFresh Comfo suitable for a wide range of residential construction.
A stainless steel exterior hood is included to protect the outdoor opening and provide a clean finished installation.
The unit is rated for outdoor temperatures down to approximately -4°F and is designed for frost- and condensate-free operation. Need a cold climate unit?, learn about our Twinfresh Elite 160 Pro.
Connect Multiple TwinFresh Units
For larger spaces or projects requiring additional airflow, two or more TwinFresh units can be connected.
When paired, the units can operate in opposite cycles: while one unit supplies fresh outdoor air, another exhausts stale indoor air. The airflow direction then reverses as part of the energy recovery cycle.
This makes the TwinFresh system particularly useful for larger rooms, additions, multi-room projects, and applications requiring balanced ventilation.
Fresh Air for Home Additions
Building a new addition or finishing an existing space? A ductless ERV can provide fresh-air ventilation without extending a traditional whole-home duct system.
Learn how to plan the right ventilation system for your home addition.
New to Ductless ERVs?
Our complete TwinFresh Comfo Ductless ERV Guide explains how the system works, where it can be installed, and how energy recovery can help improve indoor air quality while reducing energy loss.
Need to reset the filter indicator? Read our guide on resetting the TwinFresh filter change indicator.
TwinFresh Comfo RA1-50-2 FAQ
What is the TwinFresh Comfo RA1-50-2?
The TwinFresh Comfo RA1-50-2 is a through-wall ductless Energy Recovery Ventilator (ERV) designed to bring fresh outdoor air indoors while exhausting stale indoor air and recovering energy from the outgoing air.
How large of a room can the TwinFresh Comfo ventilate?
It is designed for individual spaces up to approximately 500 sq. ft., depending on the room and ventilation requirements.
How much airflow does the TwinFresh Comfo provide?
The unit provides up to 30 CFM in ventilation mode.
Does the TwinFresh Comfo require ductwork?
No. It installs directly through an exterior wall, eliminating the need for a traditional ducted ventilation system.
What wall thickness is required?
A minimum wall thickness of approximately 4-3/4" is required. The telescoping wall sleeve accommodates walls up to approximately 18" thick.
What type of filter does it use?
The TwinFresh Comfo includes washable MERV 5 filters that help capture dust, pollen, and other airborne particles.
Can multiple TwinFresh Comfo units be used together?
Yes. Multiple units can be connected for larger rooms or projects and configured to operate together as part of a balanced ventilation system.
How quiet is the TwinFresh Comfo?
Sound levels range from approximately 0.2 to 0.5 sones at 10 ft, depending on operating speed.
Does it come with a remote control?
Yes. A wireless remote control is included.
Need larger quantities?
We work with contractors, developers, and builders across North America. Call us toll-free or email our sales team - we’ll get you great pricing for your project.
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