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
The Vents TwinFresh Expert RW1-85-2 V.2 is the better ERV or HRV overall, rated 3.0 to 2.2. The Vents TwinFresh Expert RW1-85-2 V.2 leads on efficiency and value. The Vents TwinFresh Expert RW1-85-2 V.2 costs $1,166 less ($949 vs $2,115).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Vents Micra ERV 100 Wi-Fi
#6 in Single roomFull review
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.
Amazon $2,115$2,115
Which should you buy?
- Choose the Vents TwinFresh Expert RW1-85-2 V.2 for efficiency (5.2 cfm per watt (50 cfm, 9.7 W) vs 1.1 cfm per watt (59 cfm, 53 W)) and value ($18.98 per cfm ($949, 50 cfm) vs $35.85 per cfm ($2,115, 59 cfm)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every single room ERV or HRV; a clear win is highlighted. How we rank explains each one.
| Factor weight | Vents TwinFresh Expert RW1-85-2 V.2 | Vents Micra ERV 100 Wi-Fi |
|---|---|---|
| Overall rating | 3.0/5 | 2.2/5 |
| Heat recovery 25% | 50 recovery efficiency not published (neutral score used) | 50 recovery efficiency not published (neutral score used) |
| Efficiency 15% | 79 5.2 cfm per watt (50 cfm, 9.7 W) | 5 1.1 cfm per watt (59 cfm, 53 W) |
| Value 25% | 39 $18.98 per cfm ($949, 50 cfm) | 6 $35.85 per cfm ($2,115, 59 cfm) |
| Quiet 10% | 33 2.1 sones | 50 noise not published (neutral score used) |
| Warranty 25% | 17 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Vents TwinFresh Expert RW1-85-2 V.2 | Vents Micra ERV 100 Wi-Fi | |
|---|---|---|
| Performance | ||
| Core | ERV (heat and moisture) | ERV (heat and moisture) |
| Install | Ductless, single room | Ductless, single room |
| Airflow | 50 cfm | 59 cfm |
| Power draw | 9.7 W | 53 W |
| Noise | 2.1 sones | - |
| Build | ||
| Frost protection | Yes | Yes |
| Filter | MERV 5 | MERV 14 |
| HVI certified | No | No |
| Warranty | 2 years | - |