Vents TwinFresh Expert RW1-85-2 V.2
#3 in Single roomFull review
The highest airflow TwinFresh for a large room, studio or tiny home. Expect to run it below top speed in a bedroom because of the noise.
Amazon $949$949
50 cfm9.7 W
2.2/5
A filtered, app controlled wall ventilator for a bedroom or studio where ducts aren’t an option. It costs far more per cfm than reversing pairs.
- 59 cfmAirflow
- 53 WPower draw
Check price at Amazon$2,115
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- True balanced airflow with separate supply and exhaust fans, unlike reversing through wall units
- MERV 14 supply filter, upgradable to HEPA
- Wi-Fi app control plus a remote
- Can also pull exhaust from an adjoining bathroom
Cons
- Costs over $2,000 for 59 cfm
- Warranty term not published
- Recovery claim isn’t measured at the usual 32 °F test point
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | Micra ERV 100 Wi-Fi |
|---|---|
| Performance | |
| Core | ERV (heat and moisture) |
| Install | Ductless, single room |
| Airflow | 59 cfm |
| Power draw | 53 W |
| Build | |
| Frost protection | Yes |
| Filter | MERV 14 |
| HVI certified | No |
Alternatives in this type
Pioneer ECOasis 50
#4 in Single roomFull review
An inexpensive through wall ERV with good filtration for one bedroom, best bought as a pair. Its specs are thinner and less consistent than the Vents TwinFresh units.
Amazon $468$468
35 cfm
Pioneer ECOasis 150
#5 in Single roomFull review
A wall mounted ERV and air purifier in one for a single large room or small apartment. Buyers who want maximum fresh air per dollar will do better with a ducted unit.
Amazon $1,088$1,088
88 cfm43.8 W
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